{"title":"DPF 全部分组","description":null,"products":[{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-φ170mm","title":"DPF\/SCRF SiC Ceramic Diesel Particulate Filter 170mm (6.69\")","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是SDPF\/SCRF --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is SDPF \/ SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eSDPF\u003c\/strong\u003e (Selective Catalytic Reduction Filter) or \u003cstrong\u003eSCRF\u003c\/strong\u003e (SCR on Filter) is an integrated after‑treatment device that combines a DPF (Diesel Particulate Filter) with an SCR (Selective Catalytic Reduction) catalyst coating on the same substrate. This configuration simultaneously removes particulate matter (soot) and reduces NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eStructure and operating principle:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe SCRF is positioned close to the engine outlet (tight‑coupled) to reach urea decomposition temperature and SCR light‑off temperature quickly, avoiding excessive NO\u003csub\u003ex\u003c\/sub\u003e emissions during cold starts.\u003c\/li\u003e\n        \u003cli\u003eUrea is injected upstream of the SCRF; the generated NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the SCR catalyst layer, while the filter walls trap soot.\u003c\/li\u003e\n        \u003cli\u003eAt low temperatures (below 200°C), urea decomposition is incomplete and NO\u003csub\u003e2\u003c\/sub\u003e conversion is limited. The tight‑coupled SCRF overcomes this by achieving faster warm‑up.\u003c\/li\u003e\n        \u003cli\u003eA downstream under‑floor SCR catalyst (with higher catalyst loading) provides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion during normal driving. Some heavy‑duty systems also include a small auxiliary SCR with an ASC (Ammonia Slip Catalyst) to control excess NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors upstream of the DOC and downstream of the SCRF are used to control urea dosing and monitor SCRF performance.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis layout (DOC + SCRF close‑coupled + under‑floor SCR) is typical for modern Euro 6 heavy‑duty diesel engines.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – SDPF和DPF之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between SDPF (SCRF) and DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eAlthough both are wall‑flow ceramic filters, SDPF (SCRF) and DPF differ significantly in design and function:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eFeature\u003c\/th\u003e\n            \u003cth\u003eSDPF \/ SCRF\u003c\/th\u003e\n            \u003cth\u003eDPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePrimary function\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSimultaneous particulate filtration and NO\u003csub\u003ex\u003c\/sub\u003e reduction (SCR)\u003c\/td\u003e\n            \u003ctd\u003eOnly particulate filtration\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains SCR catalyst (e.g., Cu‑zeolite) with precious metals\u003c\/td\u003e\n            \u003ctd\u003eTypically uncoated or only catalysed for soot oxidation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher porosity (typically \u0026gt; 50%) to allow SCR coating penetration and to maintain low backpressure\u003c\/td\u003e\n            \u003ctd\u003eLower porosity (typically 40‑50%)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea injection\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eRequires urea dosing upstream\u003c\/td\u003e\n            \u003ctd\u003eNo urea required\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eConverts NO\u003csub\u003ex\u003c\/sub\u003e to N\u003csub\u003e2\u003c\/sub\u003e using NH\u003csub\u003e3\u003c\/sub\u003e\n\u003c\/td\u003e\n            \u003ctd\u003eDoes not reduce NO\u003csub\u003ex\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6 heavy‑duty and light‑duty diesel vehicles\u003c\/td\u003e\n            \u003ctd\u003eEuro 4\/5 vehicles, or as a stand‑alone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher due to coating and complex design\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eThe key structural difference is that the SDPF\/SCRF has \u003cstrong\u003ehigher porosity\u003c\/strong\u003e to accommodate the SCR washcoat without excessively increasing backpressure.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – SDPF的示例图（根据图片用文字描述） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Example performance diagram of SDPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe following diagram illustrates the NO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency of a close‑coupled SCRF system compared to an under‑floor SCR system, based on real test data.\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eSystem\u003c\/th\u003e\n            \u003cth\u003eTemperature range\u003c\/th\u003e\n            \u003cth\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency\u003c\/th\u003e\n            \u003cth\u003eKey remarks\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\n\u003cstrong\u003ecc‑SCRF\u003c\/strong\u003e (close‑coupled)\u003c\/td\u003e\n            \u003ctd\u003e200 – 400°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% at 250°C, exceeds 90% above 300°C\u003c\/td\u003e\n            \u003ctd\u003eFast light‑off, active during cold start and warm‑up\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUnder‑floor main SCR\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e300 – 600°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% only above 400°C\u003c\/td\u003e\n            \u003ctd\u003eHigher catalyst loading, but slower light‑off\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eAuxiliary small SCR (with ASC)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e200 – 450°C\u003c\/td\u003e\n            \u003ctd\u003eProvides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion and ammonia slip control\u003c\/td\u003e\n            \u003ctd\u003eOften used in heavy‑duty vehicles\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eDiagram interpretation:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe cc‑SCRF (solid curve) achieves high NO\u003csub\u003ex\u003c\/sub\u003e conversion (\u0026gt;80%) already at ~250°C, while the under‑floor SCR (dashed curve) reaches the same level only above 400°C.\u003c\/li\u003e\n        \u003cli\u003eTwo urea injection points are shown: one upstream of the cc‑SCRF and a second upstream of the under‑floor SCR (for heavy‑duty applications).\u003c\/li\u003e\n        \u003cli\u003eA small auxiliary SCR is placed downstream to handle residual NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors before and after the system enable precise urea dosing and performance monitoring.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis configuration ensures optimal NO\u003csub\u003ex\u003c\/sub\u003e reduction across the entire operating range, especially during transient conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – SDPF\/SCRF 涂PT和不涂PT之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between Pt‑coated and uncoated SDPF\/SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe coating of platinum (Pt) on the SDPF\/SCRF significantly affects performance, especially at low temperatures. Here is a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003ePt‑coated SDPF\/SCRF\u003c\/th\u003e\n            \u003cth\u003eUncoated SDPF\/SCRF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO oxidation\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnables NO → NO\u003csub\u003e2\u003c\/sub\u003e conversion, improving low‑temperature SCR performance\u003c\/td\u003e\n            \u003ctd\u003eLimited NO oxidation; relies mainly on engine‑out NO\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eLow‑temperature activity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher activity below 250°C due to faster NH\u003csub\u003e3\u003c\/sub\u003e activation and NO\u003csub\u003e2\u003c\/sub\u003e promotion\u003c\/td\u003e\n            \u003ctd\u003eLower activity; needs higher temperature for effective SCR\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea decomposition\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSlightly improved due to local heat release from oxidation reactions\u003c\/td\u003e\n            \u003ctd\u003eNo such benefit\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePassive regeneration\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnhanced soot oxidation (due to NO\u003csub\u003e2\u003c\/sub\u003e) – lowers regeneration temperature\u003c\/td\u003e\n            \u003ctd\u003eHigher soot oxidation temperature, more active regeneration needed\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePt may suffer from sulfur poisoning and thermal ageing\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no precious metal degradation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSignificantly more expensive\u003c\/td\u003e\n            \u003ctd\u003eLower cost\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6d, cold‑start heavy‑duty, and vehicles with frequent low‑load operation\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 without extreme cold‑start demands\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn summary, Pt coating greatly improves cold‑start NO\u003csub\u003ex\u003c\/sub\u003e reduction and passive regeneration, but adds cost and complexity. The choice depends on emission targets and operating conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 我们的SDPF\/SCRF使用的是什么SCR基材 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e Which SCR substrate material do we use?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur SDPF\/SCRF products use a \u003cstrong\u003ecopper‑based zeolite (Cu‑zeolite)\u003c\/strong\u003e as the SCR catalyst material.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey advantages of Cu‑zeolite SCR:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExcellent low‑temperature activity:\u003c\/strong\u003e Effective even below 200°C, ideal for cold‑start and low‑load conditions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh hydrothermal durability:\u003c\/strong\u003e Withstands temperatures up to 650°C without significant degradation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGood resistance to sulfur poisoning\u003c\/strong\u003e compared to iron‑based zeolites.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBroad operating window:\u003c\/strong\u003e Maintains high NO\u003csub\u003ex\u003c\/sub\u003e conversion from 200°C to 500°C.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLower precious metal content\u003c\/strong\u003e than vanadium‑based systems, reducing cost.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis Cu‑zeolite coating is applied to the cordierite or silicon carbide DPF substrate (depending on the model) to provide both particulate filtration and SCR functionality in a single unit.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – SDPF\/SCRF的主要功能和工作原理是什么？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e Main functions and working principle of SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eMain functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eParticulate filtration:\u003c\/strong\u003e Traps soot and ash particles from diesel exhaust, reducing PM emissions by \u0026gt; 90%.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e reduction:\u003c\/strong\u003e Converts nitrogen oxides (NO and NO₂) into harmless nitrogen (N₂) and water (H₂O) via selective catalytic reduction.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePassive soot oxidation:\u003c\/strong\u003e Generates NO₂ from NO (with Pt coating) to oxidise trapped soot at lower temperatures, reducing regeneration frequency.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eWorking principle (step‑by‑step):\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExhaust gas enters the SCRF\u003c\/strong\u003e – containing NO, NO₂, soot, and other gaseous pollutants.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUrea injection\u003c\/strong\u003e – AdBlue (urea‑water solution) is sprayed upstream; it decomposes into NH\u003csub\u003e3\u003c\/sub\u003e and CO₂.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNH\u003csub\u003e3\u003c\/sub\u003e mixes with exhaust\u003c\/strong\u003e and flows into the SCRF channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration\u003c\/strong\u003e – The wall‑flow structure forces the gas through the porous walls, trapping soot on the inlet channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSCR reaction\u003c\/strong\u003e – NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the Cu‑zeolite catalyst layer on the filter walls, producing N₂ and H₂O.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration\u003c\/strong\u003e – Accumulated soot is periodically burned off via passive oxidation (using NO₂) or active regeneration (raising exhaust temperature to ~600°C).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eClean gas exits\u003c\/strong\u003e – with significantly reduced particulate and NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/li\u003e\n      \u003c\/ol\u003e\n      \u003cp\u003eThis integrated design saves space, reduces system complexity, and improves overall emission control efficiency compared to separate DPF + SCR units.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 堇青石材质和碳化硅的区别？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Difference between cordierite and silicon carbide materials?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are used as DPF\/SCRF substrates. Their differences are summarized below:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide (SiC)\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal expansion coefficient\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eVery low (~1.5×10⁻⁶\/℃)\u003c\/td\u003e\n            \u003ctd\u003eHigher (~4.0×10⁻⁶\/℃)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal shock resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited above 1000°C\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands high thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaximum operating temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1200°C\u003c\/td\u003e\n            \u003ctd\u003e~1600°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50% (can be tailored)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHeavier\u003c\/td\u003e\n            \u003ctd\u003eLighter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn general, cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions, especially where frequent regeneration is required.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – SDPF\/SCRF最小起订量 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e Minimum order quantity (MOQ) for SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur minimum order quantities vary by material type:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSilicon Carbide (SiC) material:\u003c\/strong\u003e \u003cstrong\u003e3 pieces\u003c\/strong\u003e (3pcs)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCordierite material:\u003c\/strong\u003e \u003cstrong\u003e10 pieces\u003c\/strong\u003e (10pcs)\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThese MOQs are set to ensure efficient production and coating processes. For larger volumes, we offer competitive pricing and shorter lead times. If you require a specific quantity below these MOQs, please contact our sales team to discuss possibilities.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 公司总部地址 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 如何联系我们 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"Cordierite \/ SCR Coating \/ 170 x 100mm","offer_id":51670997303642,"sku":null,"price":58.52,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ SCR Coating \/ 170 x 130mm","offer_id":54451684606298,"sku":null,"price":76.04,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ SCR Coating \/ 170 x 203mm","offer_id":54451684639066,"sku":null,"price":118.84,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 170 x 100mm","offer_id":51678491410778,"sku":null,"price":100.89,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 170 x 130mm","offer_id":54451684671834,"sku":null,"price":131.11,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 170 x 203mm","offer_id":54451684704602,"sku":null,"price":204.89,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 170 x 100mm","offer_id":51670996779354,"sku":null,"price":86.76,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 170 x 130mm","offer_id":54451684737370,"sku":null,"price":112.76,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 170 x 203mm","offer_id":54451684770138,"sku":null,"price":176.2,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 170 x 100mm","offer_id":51678491148634,"sku":null,"price":129.14,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 170 x 130mm","offer_id":54451684802906,"sku":null,"price":167.82,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 170 x 203mm","offer_id":54451684835674,"sku":null,"price":262.26,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/1_6032cf79-dc79-4005-8a25-c7c4dade23b6.jpg?v=1784692455"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-φ180mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 180mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"180 x 145mm \/ Cordierite \/ Uncoated","offer_id":51688035877210,"sku":null,"price":31.49,"currency_code":"GBP","in_stock":true},{"title":"180 x 145mm \/ Cordierite \/ Coated","offer_id":51688035909978,"sku":null,"price":114.8,"currency_code":"GBP","in_stock":true},{"title":"180 x 145mm \/ Silicon carbide \/ Uncoated","offer_id":51688035615066,"sku":null,"price":72.16,"currency_code":"GBP","in_stock":true},{"title":"180 x 145mm \/ Silicon carbide \/ Coated","offer_id":51688035647834,"sku":null,"price":154.16,"currency_code":"GBP","in_stock":true},{"title":"180 x 160mm \/ Cordierite \/ Uncoated","offer_id":54447988277594,"sku":null,"price":34.73,"currency_code":"GBP","in_stock":true},{"title":"180 x 160mm \/ Cordierite \/ Coated","offer_id":54447988310362,"sku":null,"price":126.62,"currency_code":"GBP","in_stock":true},{"title":"180 x 160mm \/ Silicon carbide \/ Uncoated","offer_id":54447988343130,"sku":null,"price":79.59,"currency_code":"GBP","in_stock":true},{"title":"180 x 160mm \/ Silicon carbide \/ Coated","offer_id":54447988375898,"sku":null,"price":170.04,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/1_0cdaa2b1-1c1c-449c-bf12-012bb8804185.jpg?v=1784539365"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-175mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 175mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"175x143mm \/ Cordierite \/ Uncoated","offer_id":54450561778010,"sku":null,"price":29.35,"currency_code":"GBP","in_stock":true},{"title":"175x143mm \/ Cordierite \/ Coated","offer_id":54450561810778,"sku":null,"price":107.02,"currency_code":"GBP","in_stock":true},{"title":"175x143mm \/ Silicon carbide \/ Uncoated","offer_id":54450561843546,"sku":null,"price":67.27,"currency_code":"GBP","in_stock":true},{"title":"175x143mm \/ Silicon carbide \/ Coated","offer_id":54450561876314,"sku":null,"price":143.72,"currency_code":"GBP","in_stock":true},{"title":"175x190mm \/ Cordierite \/ Uncoated","offer_id":54450561909082,"sku":null,"price":39.0,"currency_code":"GBP","in_stock":true},{"title":"175x190mm \/ Cordierite \/ Coated","offer_id":54450561941850,"sku":null,"price":142.18,"currency_code":"GBP","in_stock":true},{"title":"175x190mm \/ Silicon carbide \/ Uncoated","offer_id":54450561974618,"sku":null,"price":89.37,"currency_code":"GBP","in_stock":true},{"title":"175x190mm \/ Silicon carbide \/ Coated","offer_id":54450562007386,"sku":null,"price":190.92,"currency_code":"GBP","in_stock":true},{"title":"175x203mm \/ Cordierite \/ Uncoated","offer_id":54450562040154,"sku":null,"price":41.64,"currency_code":"GBP","in_stock":true},{"title":"175x203mm \/ Cordierite \/ Coated","offer_id":54450562072922,"sku":null,"price":151.82,"currency_code":"GBP","in_stock":true},{"title":"175x203mm \/ Silicon carbide \/ Uncoated","offer_id":54450562105690,"sku":null,"price":95.43,"currency_code":"GBP","in_stock":true},{"title":"175x203mm \/ Silicon carbide \/ Coated","offer_id":54450562138458,"sku":null,"price":203.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/1_c97278f6-8c35-4b4f-9f64-c78586559045.jpg?v=1784605733"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-173mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 173mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"173x102mm \/ Cordierite \/ Uncoated","offer_id":54450644812122,"sku":null,"price":20.48,"currency_code":"GBP","in_stock":true},{"title":"173x102mm \/ Cordierite \/ Coated","offer_id":54450644844890,"sku":null,"price":74.67,"currency_code":"GBP","in_stock":true},{"title":"173x102mm \/ Silicon carbide \/ Uncoated","offer_id":54450644877658,"sku":null,"price":46.93,"currency_code":"GBP","in_stock":true},{"title":"173x102mm \/ Silicon carbide \/ Coated","offer_id":54450644910426,"sku":null,"price":100.27,"currency_code":"GBP","in_stock":true},{"title":"173x140mm \/ Cordierite \/ Uncoated","offer_id":54450644943194,"sku":null,"price":28.07,"currency_code":"GBP","in_stock":true},{"title":"173x140mm \/ Cordierite \/ Coated","offer_id":54450644975962,"sku":null,"price":102.36,"currency_code":"GBP","in_stock":true},{"title":"173x140mm \/ Silicon carbide \/ Uncoated","offer_id":54450645008730,"sku":null,"price":64.34,"currency_code":"GBP","in_stock":true},{"title":"173x140mm \/ Silicon carbide \/ Coated","offer_id":54450645041498,"sku":null,"price":137.45,"currency_code":"GBP","in_stock":true},{"title":"173x197mm \/ Cordierite \/ Uncoated","offer_id":54450645074266,"sku":null,"price":39.51,"currency_code":"GBP","in_stock":true},{"title":"173x197mm \/ Cordierite \/ Coated","offer_id":54450645107034,"sku":null,"price":144.04,"currency_code":"GBP","in_stock":true},{"title":"173x197mm \/ Silicon carbide \/ Uncoated","offer_id":54450645139802,"sku":null,"price":90.54,"currency_code":"GBP","in_stock":true},{"title":"173x197mm \/ Silicon carbide \/ Coated","offer_id":54450645172570,"sku":null,"price":193.43,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/1_1d56318f-6f6c-459e-83f7-03af8548b46f.jpg?v=1784614792"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-172mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 172mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"172x100mm \/ Cordierite \/ Uncoated","offer_id":54450656346458,"sku":null,"price":19.8,"currency_code":"GBP","in_stock":true},{"title":"172x100mm \/ Cordierite \/ Coated","offer_id":54450656379226,"sku":null,"price":72.18,"currency_code":"GBP","in_stock":true},{"title":"172x100mm \/ Silicon carbide \/ Uncoated","offer_id":54450656411994,"sku":null,"price":45.37,"currency_code":"GBP","in_stock":true},{"title":"172x100mm \/ Silicon carbide \/ Coated","offer_id":54450656444762,"sku":null,"price":96.92,"currency_code":"GBP","in_stock":true},{"title":"172x125mm \/ Cordierite \/ Uncoated","offer_id":54450656477530,"sku":null,"price":24.75,"currency_code":"GBP","in_stock":true},{"title":"172x125mm \/ Cordierite \/ Coated","offer_id":54450656510298,"sku":null,"price":90.22,"currency_code":"GBP","in_stock":true},{"title":"172x125mm \/ Silicon carbide \/ Uncoated","offer_id":54450656543066,"sku":null,"price":56.71,"currency_code":"GBP","in_stock":true},{"title":"172x125mm \/ Silicon carbide \/ Coated","offer_id":54450656575834,"sku":null,"price":121.16,"currency_code":"GBP","in_stock":true},{"title":"172x152mm \/ Cordierite \/ Uncoated","offer_id":54450656608602,"sku":null,"price":30.12,"currency_code":"GBP","in_stock":true},{"title":"172x152mm \/ Cordierite \/ Coated","offer_id":54450656641370,"sku":null,"price":109.82,"currency_code":"GBP","in_stock":true},{"title":"172x152mm \/ Silicon carbide \/ Uncoated","offer_id":54450656674138,"sku":null,"price":69.03,"currency_code":"GBP","in_stock":true},{"title":"172x152mm \/ Silicon carbide \/ Coated","offer_id":54450656706906,"sku":null,"price":147.48,"currency_code":"GBP","in_stock":true},{"title":"172x200mm \/ Cordierite \/ Uncoated","offer_id":54450656739674,"sku":null,"price":39.59,"currency_code":"GBP","in_stock":true},{"title":"172x200mm \/ Cordierite \/ Coated","offer_id":54450656772442,"sku":null,"price":144.36,"currency_code":"GBP","in_stock":true},{"title":"172x200mm \/ Silicon carbide \/ Uncoated","offer_id":54450656805210,"sku":null,"price":90.74,"currency_code":"GBP","in_stock":true},{"title":"172x200mm \/ Silicon carbide \/ Coated","offer_id":54450656837978,"sku":null,"price":193.85,"currency_code":"GBP","in_stock":true},{"title":"172x203mm \/ Cordierite \/ Uncoated","offer_id":54450656870746,"sku":null,"price":40.19,"currency_code":"GBP","in_stock":true},{"title":"172x203mm \/ Cordierite \/ Coated","offer_id":54450656903514,"sku":null,"price":146.53,"currency_code":"GBP","in_stock":true},{"title":"172x203mm \/ Silicon carbide \/ Uncoated","offer_id":54450656936282,"sku":null,"price":92.11,"currency_code":"GBP","in_stock":true},{"title":"172x203mm \/ Silicon carbide \/ Coated","offer_id":54450656969050,"sku":null,"price":196.77,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/3_59ced925-99ce-422b-a7b3-4ef35da6835b.jpg?v=1784615805"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-152-4mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 152.4mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"152.4x152mm \/ Cordierite \/ Uncoated","offer_id":54450726371674,"sku":null,"price":23.64,"currency_code":"GBP","in_stock":true},{"title":"152.4x152mm \/ Cordierite \/ Coated","offer_id":54450732695898,"sku":null,"price":86.18,"currency_code":"GBP","in_stock":true},{"title":"152.4x152mm \/ Silicon carbide \/ Uncoated","offer_id":54450732728666,"sku":null,"price":54.17,"currency_code":"GBP","in_stock":true},{"title":"152.4x152mm \/ Silicon carbide \/ Coated","offer_id":54450732761434,"sku":null,"price":115.72,"currency_code":"GBP","in_stock":true},{"title":"152.4x190.5mm \/ Cordierite \/ Uncoated","offer_id":54450726404442,"sku":null,"price":29.61,"currency_code":"GBP","in_stock":true},{"title":"152.4x190.5mm \/ Cordierite \/ Coated","offer_id":54450732794202,"sku":null,"price":107.96,"currency_code":"GBP","in_stock":true},{"title":"152.4x190.5mm \/ Silicon carbide \/ Uncoated","offer_id":54450732826970,"sku":null,"price":67.86,"currency_code":"GBP","in_stock":true},{"title":"152.4x190.5mm \/ Silicon carbide \/ Coated","offer_id":54450732859738,"sku":null,"price":144.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/11_8c0a124e-761e-4af5-9174-99370b80bd27.jpg?v=1784617067"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-145mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 145mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"145x125mm \/ Cordierite \/ Uncoated","offer_id":54450902106458,"sku":null,"price":17.58,"currency_code":"GBP","in_stock":true},{"title":"145x125mm \/ Cordierite \/ Coated","offer_id":54450902139226,"sku":null,"price":64.09,"currency_code":"GBP","in_stock":true},{"title":"145x125mm \/ Silicon carbide \/ Uncoated","offer_id":54450902171994,"sku":null,"price":40.28,"currency_code":"GBP","in_stock":true},{"title":"145x125mm \/ Silicon carbide \/ Coated","offer_id":54450902204762,"sku":null,"price":86.06,"currency_code":"GBP","in_stock":true},{"title":"145x130mm \/ Cordierite \/ Uncoated","offer_id":54450902237530,"sku":null,"price":18.35,"currency_code":"GBP","in_stock":true},{"title":"145x130mm \/ Cordierite \/ Coated","offer_id":54450902270298,"sku":null,"price":66.89,"currency_code":"GBP","in_stock":true},{"title":"145x130mm \/ Silicon carbide \/ Uncoated","offer_id":54450902303066,"sku":null,"price":42.04,"currency_code":"GBP","in_stock":true},{"title":"145x130mm \/ Silicon carbide \/ Coated","offer_id":54450902335834,"sku":null,"price":89.82,"currency_code":"GBP","in_stock":true},{"title":"145x190mm \/ Cordierite \/ Uncoated","offer_id":54450902368602,"sku":null,"price":26.79,"currency_code":"GBP","in_stock":true},{"title":"145x190mm \/ Cordierite \/ Coated","offer_id":54450902401370,"sku":null,"price":97.69,"currency_code":"GBP","in_stock":true},{"title":"145x190mm \/ Silicon carbide \/ Uncoated","offer_id":54450902434138,"sku":null,"price":61.4,"currency_code":"GBP","in_stock":true},{"title":"145x190mm \/ Silicon carbide \/ Coated","offer_id":54450902466906,"sku":null,"price":131.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/33_36ee0c58-40c9-40d6-8b38-89d5295f262c.jpg?v=1784618520"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-140mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 140mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"140x152mm \/ Cordierite \/ Uncoated","offer_id":54451139248474,"sku":null,"price":19.97,"currency_code":"GBP","in_stock":true},{"title":"140x152mm \/ Cordierite \/ Coated","offer_id":54451139281242,"sku":null,"price":72.8,"currency_code":"GBP","in_stock":true},{"title":"140x152mm \/ Silicon carbide \/ Uncoated","offer_id":54451139314010,"sku":null,"price":45.76,"currency_code":"GBP","in_stock":true},{"title":"140x152mm \/ Silicon carbide \/ Coated","offer_id":54451139346778,"sku":null,"price":97.76,"currency_code":"GBP","in_stock":true},{"title":"140x170mm \/ Cordierite \/ Uncoated","offer_id":54451139379546,"sku":null,"price":22.36,"currency_code":"GBP","in_stock":true},{"title":"140x170mm \/ Cordierite \/ Coated","offer_id":54451139412314,"sku":null,"price":81.51,"currency_code":"GBP","in_stock":true},{"title":"140x170mm \/ Silicon carbide \/ Uncoated","offer_id":54451139445082,"sku":null,"price":51.24,"currency_code":"GBP","in_stock":true},{"title":"140x170mm \/ Silicon carbide \/ Coated","offer_id":54451139477850,"sku":null,"price":109.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/11_c18c0bfd-b85a-4bcf-b802-17db2716b6d4.jpg?v=1784620659"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-136mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 136mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"136x120mm \/ Cordierite \/ Uncoated","offer_id":54451281264986,"sku":null,"price":14.85,"currency_code":"GBP","in_stock":true},{"title":"136x120mm \/ Cordierite \/ Coated","offer_id":54451285131610,"sku":null,"price":54.13,"currency_code":"GBP","in_stock":true},{"title":"136x120mm \/ Silicon carbide \/ Uncoated","offer_id":54451285164378,"sku":null,"price":34.03,"currency_code":"GBP","in_stock":true},{"title":"136x120mm \/ Silicon carbide \/ Coated","offer_id":54451285197146,"sku":null,"price":72.69,"currency_code":"GBP","in_stock":true},{"title":"136x130mm \/ Cordierite \/ Uncoated","offer_id":54451281297754,"sku":null,"price":16.13,"currency_code":"GBP","in_stock":true},{"title":"136x130mm \/ Cordierite \/ Coated","offer_id":54451285229914,"sku":null,"price":58.8,"currency_code":"GBP","in_stock":true},{"title":"136x130mm \/ Silicon carbide \/ Uncoated","offer_id":54451285262682,"sku":null,"price":36.96,"currency_code":"GBP","in_stock":true},{"title":"136x130mm \/ Silicon carbide \/ Coated","offer_id":54451285295450,"sku":null,"price":78.96,"currency_code":"GBP","in_stock":true},{"title":"136x180mm \/ Cordierite \/ Uncoated","offer_id":54451281330522,"sku":null,"price":22.27,"currency_code":"GBP","in_stock":true},{"title":"136x180mm \/ Cordierite \/ Coated","offer_id":54451285328218,"sku":null,"price":81.2,"currency_code":"GBP","in_stock":true},{"title":"136x180mm \/ Silicon carbide \/ Uncoated","offer_id":54451285360986,"sku":null,"price":51.04,"currency_code":"GBP","in_stock":true},{"title":"136x180mm \/ Silicon carbide \/ Coated","offer_id":54451285393754,"sku":null,"price":109.04,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/33_391d75ac-4704-4f4a-a0a3-939b4a9892ba.jpg?v=1784622022"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-135mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 135mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"135x120mm \/ Cordierite \/ Uncoated","offer_id":54451426722138,"sku":null,"price":14.68,"currency_code":"GBP","in_stock":true},{"title":"135x120mm \/ Cordierite \/ Coated","offer_id":54451426754906,"sku":null,"price":53.51,"currency_code":"GBP","in_stock":true},{"title":"135x120mm \/ Silicon carbide \/ Uncoated","offer_id":54451426787674,"sku":null,"price":33.64,"currency_code":"GBP","in_stock":true},{"title":"135x120mm \/ Silicon carbide \/ Coated","offer_id":54451426820442,"sku":null,"price":71.86,"currency_code":"GBP","in_stock":true},{"title":"135x127mm \/ Cordierite \/ Uncoated","offer_id":54451426853210,"sku":null,"price":15.53,"currency_code":"GBP","in_stock":true},{"title":"135x127mm \/ Cordierite \/ Coated","offer_id":54451426885978,"sku":null,"price":56.62,"currency_code":"GBP","in_stock":true},{"title":"135x127mm \/ Silicon carbide \/ Uncoated","offer_id":54451426918746,"sku":null,"price":35.59,"currency_code":"GBP","in_stock":true},{"title":"135x127mm \/ Silicon carbide \/ Coated","offer_id":54451426951514,"sku":null,"price":76.04,"currency_code":"GBP","in_stock":true},{"title":"135x170mm \/ Cordierite \/ Uncoated","offer_id":54451426984282,"sku":null,"price":20.74,"currency_code":"GBP","in_stock":true},{"title":"135x170mm \/ Cordierite \/ Coated","offer_id":54451427017050,"sku":null,"price":75.6,"currency_code":"GBP","in_stock":true},{"title":"135x170mm \/ Silicon carbide \/ Uncoated","offer_id":54451427049818,"sku":null,"price":47.52,"currency_code":"GBP","in_stock":true},{"title":"135x170mm \/ Silicon carbide \/ Coated","offer_id":54451427082586,"sku":null,"price":101.52,"currency_code":"GBP","in_stock":true},{"title":"135x180mm \/ Cordierite \/ Uncoated","offer_id":54451427115354,"sku":null,"price":22.02,"currency_code":"GBP","in_stock":true},{"title":"135x180mm \/ Cordierite \/ Coated","offer_id":54451427148122,"sku":null,"price":80.27,"currency_code":"GBP","in_stock":true},{"title":"135x180mm \/ Silicon carbide \/ Uncoated","offer_id":54451427180890,"sku":null,"price":50.45,"currency_code":"GBP","in_stock":true},{"title":"135x180mm \/ Silicon carbide \/ Coated","offer_id":54451427213658,"sku":null,"price":107.79,"currency_code":"GBP","in_stock":true},{"title":"135x190mm \/ Cordierite \/ Uncoated","offer_id":54451427246426,"sku":null,"price":23.21,"currency_code":"GBP","in_stock":true},{"title":"135x190mm \/ Cordierite \/ Coated","offer_id":54451427279194,"sku":null,"price":84.62,"currency_code":"GBP","in_stock":true},{"title":"135x190mm \/ Silicon carbide \/ Uncoated","offer_id":54451427311962,"sku":null,"price":53.19,"currency_code":"GBP","in_stock":true},{"title":"135x190mm \/ Silicon carbide \/ Coated","offer_id":54451427344730,"sku":null,"price":113.64,"currency_code":"GBP","in_stock":true},{"title":"135x200mm \/ Cordierite \/ Uncoated","offer_id":54451427377498,"sku":null,"price":24.41,"currency_code":"GBP","in_stock":true},{"title":"135x200mm \/ Cordierite \/ Coated","offer_id":54451427410266,"sku":null,"price":88.98,"currency_code":"GBP","in_stock":true},{"title":"135x200mm \/ Silicon carbide \/ Uncoated","offer_id":54451427443034,"sku":null,"price":55.93,"currency_code":"GBP","in_stock":true},{"title":"135x200mm \/ Silicon carbide \/ Coated","offer_id":54451427475802,"sku":null,"price":119.48,"currency_code":"GBP","in_stock":true},{"title":"135x252mm \/ Cordierite \/ Uncoated","offer_id":54451427508570,"sku":null,"price":30.81,"currency_code":"GBP","in_stock":true},{"title":"135x252mm \/ Cordierite \/ Coated","offer_id":54451427541338,"sku":null,"price":112.31,"currency_code":"GBP","in_stock":true},{"title":"135x252mm \/ Silicon carbide \/ Uncoated","offer_id":54451427574106,"sku":null,"price":70.6,"currency_code":"GBP","in_stock":true},{"title":"135x252mm \/ Silicon carbide \/ Coated","offer_id":54451427606874,"sku":null,"price":150.82,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/11_5123c7d5-ac65-471b-ba84-a5f030ce2942.jpg?v=1784623621"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-130mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 130mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"130x120mm \/ Cordierite \/ Uncoated","offer_id":54451605602650,"sku":null,"price":13.57,"currency_code":"GBP","in_stock":true},{"title":"130x120mm \/ Cordierite \/ Coated","offer_id":54451605635418,"sku":null,"price":49.47,"currency_code":"GBP","in_stock":true},{"title":"130x120mm \/ Silicon carbide \/ Uncoated","offer_id":54451605668186,"sku":null,"price":31.09,"currency_code":"GBP","in_stock":true},{"title":"130x120mm \/ Silicon carbide \/ Coated","offer_id":54451605700954,"sku":null,"price":66.43,"currency_code":"GBP","in_stock":true},{"title":"130x152.4mm \/ Cordierite \/ Uncoated","offer_id":54451605733722,"sku":null,"price":17.24,"currency_code":"GBP","in_stock":true},{"title":"130x152.4mm \/ Cordierite \/ Coated","offer_id":54451605766490,"sku":null,"price":62.84,"currency_code":"GBP","in_stock":true},{"title":"130x152.4mm \/ Silicon carbide \/ Uncoated","offer_id":54451605799258,"sku":null,"price":39.5,"currency_code":"GBP","in_stock":true},{"title":"130x152.4mm \/ Silicon carbide \/ Coated","offer_id":54451605832026,"sku":null,"price":84.39,"currency_code":"GBP","in_stock":true},{"title":"130x169mm \/ Cordierite \/ Uncoated","offer_id":54451605864794,"sku":null,"price":19.11,"currency_code":"GBP","in_stock":true},{"title":"130x169mm \/ Cordierite \/ Coated","offer_id":54451605897562,"sku":null,"price":69.69,"currency_code":"GBP","in_stock":true},{"title":"130x169mm \/ Silicon carbide \/ Uncoated","offer_id":54451605930330,"sku":null,"price":43.8,"currency_code":"GBP","in_stock":true},{"title":"130x169mm \/ Silicon carbide \/ Coated","offer_id":54451605963098,"sku":null,"price":93.58,"currency_code":"GBP","in_stock":true},{"title":"130x200mm \/ Cordierite \/ Uncoated","offer_id":54451605995866,"sku":null,"price":22.61,"currency_code":"GBP","in_stock":true},{"title":"130x200mm \/ Cordierite \/ Coated","offer_id":54451606028634,"sku":null,"price":82.44,"currency_code":"GBP","in_stock":true},{"title":"130x200mm \/ Silicon carbide \/ Uncoated","offer_id":54451606061402,"sku":null,"price":51.82,"currency_code":"GBP","in_stock":true},{"title":"130x200mm \/ Silicon carbide \/ Coated","offer_id":54451606094170,"sku":null,"price":110.71,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/33_57c86c68-f9b8-4c3c-b48c-a3609d76bf25.jpg?v=1784626476"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-120mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 120mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"120x120mm \/ Cordierite \/ Uncoated","offer_id":54455453319514,"sku":null,"price":11.61,"currency_code":"GBP","in_stock":true},{"title":"120x120mm \/ Cordierite \/ Coated","offer_id":54455453352282,"sku":null,"price":42.31,"currency_code":"GBP","in_stock":true},{"title":"120x120mm \/ Silicon carbide \/ Uncoated","offer_id":54455453385050,"sku":null,"price":26.6,"currency_code":"GBP","in_stock":true},{"title":"120x120mm \/ Silicon carbide \/ Coated","offer_id":54455453417818,"sku":null,"price":56.82,"currency_code":"GBP","in_stock":true},{"title":"120x130mm \/ Cordierite \/ Uncoated","offer_id":54455453450586,"sku":null,"price":12.54,"currency_code":"GBP","in_stock":true},{"title":"120x130mm \/ Cordierite \/ Coated","offer_id":54455453483354,"sku":null,"price":45.73,"currency_code":"GBP","in_stock":true},{"title":"120x130mm \/ Silicon carbide \/ Uncoated","offer_id":54455453516122,"sku":null,"price":28.75,"currency_code":"GBP","in_stock":true},{"title":"120x130mm \/ Silicon carbide \/ Coated","offer_id":54455453548890,"sku":null,"price":61.41,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/111_1e9fe7ed-0006-4aaf-9725-d3128d1a1239.jpg?v=1784683986"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-330mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 330mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"330x178mm \/ Cordierite \/ Uncoated","offer_id":54455459610970,"sku":null,"price":129.88,"currency_code":"GBP","in_stock":true},{"title":"330x178mm \/ Cordierite \/ Coated","offer_id":54455460200794,"sku":null,"price":473.51,"currency_code":"GBP","in_stock":true},{"title":"330x178mm \/ Silicon carbide \/ Uncoated","offer_id":54455460233562,"sku":null,"price":297.64,"currency_code":"GBP","in_stock":true},{"title":"330x178mm \/ Silicon carbide \/ Coated","offer_id":54455460266330,"sku":null,"price":635.86,"currency_code":"GBP","in_stock":true},{"title":"330x203mm \/ Cordierite \/ Uncoated","offer_id":54455459643738,"sku":null,"price":148.05,"currency_code":"GBP","in_stock":true},{"title":"330x203mm \/ Cordierite \/ Coated","offer_id":54455460299098,"sku":null,"price":539.78,"currency_code":"GBP","in_stock":true},{"title":"330x203mm \/ Silicon carbide \/ Uncoated","offer_id":54455460331866,"sku":null,"price":339.29,"currency_code":"GBP","in_stock":true},{"title":"330x203mm \/ Silicon carbide \/ Coated","offer_id":54455460364634,"sku":null,"price":724.84,"currency_code":"GBP","in_stock":true},{"title":"330x220mm \/ Cordierite \/ Uncoated","offer_id":54455459676506,"sku":null,"price":160.51,"currency_code":"GBP","in_stock":true},{"title":"330x220mm \/ Cordierite \/ Coated","offer_id":54455460397402,"sku":null,"price":585.2,"currency_code":"GBP","in_stock":true},{"title":"330x220mm \/ Silicon carbide \/ Uncoated","offer_id":54455460430170,"sku":null,"price":367.84,"currency_code":"GBP","in_stock":true},{"title":"330x220mm \/ Silicon carbide \/ Coated","offer_id":54455460462938,"sku":null,"price":785.84,"currency_code":"GBP","in_stock":true},{"title":"330x230mm \/ Cordierite \/ Uncoated","offer_id":54455459709274,"sku":null,"price":167.77,"currency_code":"GBP","in_stock":true},{"title":"330x230mm \/ Cordierite \/ Coated","offer_id":54455460495706,"sku":null,"price":611.64,"currency_code":"GBP","in_stock":true},{"title":"330x230mm \/ Silicon carbide \/ Uncoated","offer_id":54455460528474,"sku":null,"price":384.46,"currency_code":"GBP","in_stock":true},{"title":"330x230mm \/ Silicon carbide \/ Coated","offer_id":54455460561242,"sku":null,"price":821.35,"currency_code":"GBP","in_stock":true},{"title":"330x240mm \/ Cordierite \/ Uncoated","offer_id":54455459742042,"sku":null,"price":175.1,"currency_code":"GBP","in_stock":true},{"title":"330x240mm \/ Cordierite \/ Coated","offer_id":54455460594010,"sku":null,"price":638.4,"currency_code":"GBP","in_stock":true},{"title":"330x240mm \/ Silicon carbide \/ Uncoated","offer_id":54455460626778,"sku":null,"price":401.28,"currency_code":"GBP","in_stock":true},{"title":"330x240mm \/ Silicon carbide \/ Coated","offer_id":54455460659546,"sku":null,"price":857.28,"currency_code":"GBP","in_stock":true},{"title":"330x254mm \/ Cordierite \/ Uncoated","offer_id":54455459774810,"sku":null,"price":185.26,"currency_code":"GBP","in_stock":true},{"title":"330x254mm \/ Cordierite \/ Coated","offer_id":54455460692314,"sku":null,"price":675.42,"currency_code":"GBP","in_stock":true},{"title":"330x254mm \/ Silicon carbide \/ Uncoated","offer_id":54455460725082,"sku":null,"price":424.55,"currency_code":"GBP","in_stock":true},{"title":"330x254mm \/ Silicon carbide \/ Coated","offer_id":54455460757850,"sku":null,"price":907.0,"currency_code":"GBP","in_stock":true},{"title":"330x305mm \/ Cordierite \/ Uncoated","offer_id":54455459807578,"sku":null,"price":222.46,"currency_code":"GBP","in_stock":true},{"title":"330x305mm \/ Cordierite \/ Coated","offer_id":54455460790618,"sku":null,"price":811.07,"currency_code":"GBP","in_stock":true},{"title":"330x305mm \/ Silicon carbide \/ Uncoated","offer_id":54455460823386,"sku":null,"price":509.81,"currency_code":"GBP","in_stock":true},{"title":"330x305mm \/ Silicon carbide \/ Coated","offer_id":54455460856154,"sku":null,"price":1089.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/33_6302adf6-b1ac-444f-befd-e8484a1b13c4.jpg?v=1784685966"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-305mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 305mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"305x100mm \/ Cordierite \/ Uncoated","offer_id":54455475962202,"sku":null,"price":62.29,"currency_code":"GBP","in_stock":true},{"title":"305x100mm \/ Cordierite \/ Coated","offer_id":54455475994970,"sku":null,"price":227.11,"currency_code":"GBP","in_stock":true},{"title":"305x100mm \/ Silicon carbide \/ Uncoated","offer_id":54455476027738,"sku":null,"price":142.76,"currency_code":"GBP","in_stock":true},{"title":"305x100mm \/ Silicon carbide \/ Coated","offer_id":54455476060506,"sku":null,"price":304.98,"currency_code":"GBP","in_stock":true},{"title":"305x152mm \/ Cordierite \/ Uncoated","offer_id":54455476093274,"sku":null,"price":94.72,"currency_code":"GBP","in_stock":true},{"title":"305x152mm \/ Cordierite \/ Coated","offer_id":54455476126042,"sku":null,"price":345.33,"currency_code":"GBP","in_stock":true},{"title":"305x152mm \/ Silicon carbide \/ Uncoated","offer_id":54455476158810,"sku":null,"price":217.07,"currency_code":"GBP","in_stock":true},{"title":"305x152mm \/ Silicon carbide \/ Coated","offer_id":54455476191578,"sku":null,"price":463.73,"currency_code":"GBP","in_stock":true},{"title":"305x203mm \/ Cordierite \/ Uncoated","offer_id":54455476224346,"sku":null,"price":126.46,"currency_code":"GBP","in_stock":true},{"title":"305x203mm \/ Cordierite \/ Coated","offer_id":54455476257114,"sku":null,"price":461.07,"currency_code":"GBP","in_stock":true},{"title":"305x203mm \/ Silicon carbide \/ Uncoated","offer_id":54455476289882,"sku":null,"price":289.81,"currency_code":"GBP","in_stock":true},{"title":"305x203mm \/ Silicon carbide \/ Coated","offer_id":54455476322650,"sku":null,"price":619.15,"currency_code":"GBP","in_stock":true},{"title":"305x254mm \/ Cordierite \/ Uncoated","offer_id":54455476355418,"sku":null,"price":158.29,"currency_code":"GBP","in_stock":true},{"title":"305x254mm \/ Cordierite \/ Coated","offer_id":54455476388186,"sku":null,"price":577.11,"currency_code":"GBP","in_stock":true},{"title":"305x254mm \/ Silicon carbide \/ Uncoated","offer_id":54455476420954,"sku":null,"price":362.76,"currency_code":"GBP","in_stock":true},{"title":"305x254mm \/ Silicon carbide \/ Coated","offer_id":54455476453722,"sku":null,"price":774.98,"currency_code":"GBP","in_stock":true},{"title":"305x305mm \/ Cordierite \/ Uncoated","offer_id":54455476486490,"sku":null,"price":190.04,"currency_code":"GBP","in_stock":true},{"title":"305x305mm \/ Cordierite \/ Coated","offer_id":54455476519258,"sku":null,"price":692.84,"currency_code":"GBP","in_stock":true},{"title":"305x305mm \/ Silicon carbide \/ Uncoated","offer_id":54455476552026,"sku":null,"price":435.5,"currency_code":"GBP","in_stock":true},{"title":"305x305mm \/ Silicon carbide \/ Coated","offer_id":54455476584794,"sku":null,"price":930.39,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/111_34c0c18c-4fe6-4b28-902d-744be2b40246.jpg?v=1784689080"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-286mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 286mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"286x127mm \/ Cordierite \/ Uncoated","offer_id":54455560077658,"sku":null,"price":69.55,"currency_code":"GBP","in_stock":true},{"title":"286x127mm \/ Cordierite \/ Coated","offer_id":54455560110426,"sku":null,"price":253.56,"currency_code":"GBP","in_stock":true},{"title":"286x127mm \/ Silicon carbide \/ Uncoated","offer_id":54455560143194,"sku":null,"price":159.38,"currency_code":"GBP","in_stock":true},{"title":"286x127mm \/ Silicon carbide \/ Coated","offer_id":54455560175962,"sku":null,"price":340.49,"currency_code":"GBP","in_stock":true},{"title":"286x152mm \/ Cordierite \/ Uncoated","offer_id":54455560208730,"sku":null,"price":83.29,"currency_code":"GBP","in_stock":true},{"title":"286x152mm \/ Cordierite \/ Coated","offer_id":54455560241498,"sku":null,"price":303.64,"currency_code":"GBP","in_stock":true},{"title":"286x152mm \/ Silicon carbide \/ Uncoated","offer_id":54455560274266,"sku":null,"price":190.86,"currency_code":"GBP","in_stock":true},{"title":"286x152mm \/ Silicon carbide \/ Coated","offer_id":54455560307034,"sku":null,"price":407.75,"currency_code":"GBP","in_stock":true},{"title":"286x203mm \/ Cordierite \/ Uncoated","offer_id":54455560339802,"sku":null,"price":111.19,"currency_code":"GBP","in_stock":true},{"title":"286x203mm \/ Cordierite \/ Coated","offer_id":54455560372570,"sku":null,"price":405.38,"currency_code":"GBP","in_stock":true},{"title":"286x203mm \/ Silicon carbide \/ Uncoated","offer_id":54455560405338,"sku":null,"price":254.81,"currency_code":"GBP","in_stock":true},{"title":"286x203mm \/ Silicon carbide \/ Coated","offer_id":54455560438106,"sku":null,"price":544.36,"currency_code":"GBP","in_stock":true},{"title":"286x254mm \/ Cordierite \/ Uncoated","offer_id":54455560470874,"sku":null,"price":139.18,"currency_code":"GBP","in_stock":true},{"title":"286x254mm \/ Cordierite \/ Coated","offer_id":54455560503642,"sku":null,"price":507.42,"currency_code":"GBP","in_stock":true},{"title":"286x254mm \/ Silicon carbide \/ Uncoated","offer_id":54455560536410,"sku":null,"price":318.95,"currency_code":"GBP","in_stock":true},{"title":"286x254mm \/ Silicon carbide \/ Coated","offer_id":54455560569178,"sku":null,"price":681.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/333_b92a7381-4205-42fb-a629-1da90a004e3f.jpg?v=1784701369"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-267mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 267mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"267x136mm \/ Cordierite \/ Uncoated","offer_id":54455585964378,"sku":null,"price":64.94,"currency_code":"GBP","in_stock":true},{"title":"267x136mm \/ Cordierite \/ Coated","offer_id":54455585997146,"sku":null,"price":236.76,"currency_code":"GBP","in_stock":true},{"title":"267x136mm \/ Silicon carbide \/ Uncoated","offer_id":54455586029914,"sku":null,"price":148.82,"currency_code":"GBP","in_stock":true},{"title":"267x136mm \/ Silicon carbide \/ Coated","offer_id":54455586062682,"sku":null,"price":317.93,"currency_code":"GBP","in_stock":true},{"title":"267x139mm \/ Cordierite \/ Uncoated","offer_id":54455586095450,"sku":null,"price":66.39,"currency_code":"GBP","in_stock":true},{"title":"267x139mm \/ Cordierite \/ Coated","offer_id":54455586128218,"sku":null,"price":242.04,"currency_code":"GBP","in_stock":true},{"title":"267x139mm \/ Silicon carbide \/ Uncoated","offer_id":54455586160986,"sku":null,"price":152.14,"currency_code":"GBP","in_stock":true},{"title":"267x139mm \/ Silicon carbide \/ Coated","offer_id":54455586193754,"sku":null,"price":325.03,"currency_code":"GBP","in_stock":true},{"title":"267x152mm \/ Cordierite \/ Uncoated","offer_id":54455586226522,"sku":null,"price":72.62,"currency_code":"GBP","in_stock":true},{"title":"267x152mm \/ Cordierite \/ Coated","offer_id":54455586259290,"sku":null,"price":264.76,"currency_code":"GBP","in_stock":true},{"title":"267x152mm \/ Silicon carbide \/ Uncoated","offer_id":54455586292058,"sku":null,"price":166.42,"currency_code":"GBP","in_stock":true},{"title":"267x152mm \/ Silicon carbide \/ Coated","offer_id":54455586324826,"sku":null,"price":355.53,"currency_code":"GBP","in_stock":true},{"title":"267x165mm \/ Cordierite \/ Uncoated","offer_id":54455586357594,"sku":null,"price":78.76,"currency_code":"GBP","in_stock":true},{"title":"267x165mm \/ Cordierite \/ Coated","offer_id":54455586390362,"sku":null,"price":287.16,"currency_code":"GBP","in_stock":true},{"title":"267x165mm \/ Silicon carbide \/ Uncoated","offer_id":54455586423130,"sku":null,"price":180.5,"currency_code":"GBP","in_stock":true},{"title":"267x165mm \/ Silicon carbide \/ Coated","offer_id":54455586455898,"sku":null,"price":385.61,"currency_code":"GBP","in_stock":true},{"title":"267x178mm \/ Cordierite \/ Uncoated","offer_id":54455586488666,"sku":null,"price":84.99,"currency_code":"GBP","in_stock":true},{"title":"267x178mm \/ Cordierite \/ Coated","offer_id":54455586521434,"sku":null,"price":309.87,"currency_code":"GBP","in_stock":true},{"title":"267x178mm \/ Silicon carbide \/ Uncoated","offer_id":54455586554202,"sku":null,"price":194.77,"currency_code":"GBP","in_stock":true},{"title":"267x178mm \/ Silicon carbide \/ Coated","offer_id":54455586586970,"sku":null,"price":416.11,"currency_code":"GBP","in_stock":true},{"title":"267x190mm \/ Cordierite \/ Uncoated","offer_id":54455586619738,"sku":null,"price":90.71,"currency_code":"GBP","in_stock":true},{"title":"267x190mm \/ Cordierite \/ Coated","offer_id":54455586652506,"sku":null,"price":330.71,"currency_code":"GBP","in_stock":true},{"title":"267x190mm \/ Silicon carbide \/ Uncoated","offer_id":54455586685274,"sku":null,"price":207.88,"currency_code":"GBP","in_stock":true},{"title":"267x190mm \/ Silicon carbide \/ Coated","offer_id":54455586718042,"sku":null,"price":444.1,"currency_code":"GBP","in_stock":true},{"title":"267x203mm \/ Cordierite \/ Uncoated","offer_id":54455586750810,"sku":null,"price":96.94,"currency_code":"GBP","in_stock":true},{"title":"267x203mm \/ Cordierite \/ Coated","offer_id":54455586783578,"sku":null,"price":353.42,"currency_code":"GBP","in_stock":true},{"title":"267x203mm \/ Silicon carbide \/ Uncoated","offer_id":54455586816346,"sku":null,"price":222.15,"currency_code":"GBP","in_stock":true},{"title":"267x203mm \/ Silicon carbide \/ Coated","offer_id":54455586849114,"sku":null,"price":474.6,"currency_code":"GBP","in_stock":true},{"title":"267x254mm \/ Cordierite \/ Uncoated","offer_id":54455586881882,"sku":null,"price":121.26,"currency_code":"GBP","in_stock":true},{"title":"267x254mm \/ Cordierite \/ Coated","offer_id":54455586914650,"sku":null,"price":442.09,"currency_code":"GBP","in_stock":true},{"title":"267x254mm \/ Silicon carbide \/ Uncoated","offer_id":54455586947418,"sku":null,"price":277.88,"currency_code":"GBP","in_stock":true},{"title":"267x254mm \/ Silicon carbide \/ Coated","offer_id":54455586980186,"sku":null,"price":593.66,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/11_4217a785-5bda-444f-9627-ae2394594ad6.jpg?v=1784704079"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-228mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 228mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"228x152mm \/ Cordierite \/ Uncoated","offer_id":54455972594010,"sku":null,"price":52.91,"currency_code":"GBP","in_stock":true},{"title":"228x152mm \/ Cordierite \/ Coated","offer_id":54455972626778,"sku":null,"price":192.89,"currency_code":"GBP","in_stock":true},{"title":"228x152mm \/ Silicon carbide \/ Uncoated","offer_id":54455972659546,"sku":null,"price":121.24,"currency_code":"GBP","in_stock":true},{"title":"228x152mm \/ Silicon carbide \/ Coated","offer_id":54455972692314,"sku":null,"price":259.02,"currency_code":"GBP","in_stock":true},{"title":"228x178mm \/ Cordierite \/ Uncoated","offer_id":54455972725082,"sku":null,"price":61.95,"currency_code":"GBP","in_stock":true},{"title":"228x178mm \/ Cordierite \/ Coated","offer_id":54455972757850,"sku":null,"price":225.87,"currency_code":"GBP","in_stock":true},{"title":"228x178mm \/ Silicon carbide \/ Uncoated","offer_id":54455972790618,"sku":null,"price":141.97,"currency_code":"GBP","in_stock":true},{"title":"228x178mm \/ Silicon carbide \/ Coated","offer_id":54455972823386,"sku":null,"price":303.31,"currency_code":"GBP","in_stock":true},{"title":"228x184mm \/ Cordierite \/ Uncoated","offer_id":54455972856154,"sku":null,"price":64.09,"currency_code":"GBP","in_stock":true},{"title":"228x184mm \/ Cordierite \/ Coated","offer_id":54455972888922,"sku":null,"price":233.64,"currency_code":"GBP","in_stock":true},{"title":"228x184mm \/ Silicon carbide \/ Uncoated","offer_id":54455972921690,"sku":null,"price":146.86,"currency_code":"GBP","in_stock":true},{"title":"228x184mm \/ Silicon carbide \/ Coated","offer_id":54455972954458,"sku":null,"price":313.75,"currency_code":"GBP","in_stock":true},{"title":"228x203mm \/ Cordierite \/ Uncoated","offer_id":54455972987226,"sku":null,"price":70.66,"currency_code":"GBP","in_stock":true},{"title":"228x203mm \/ Cordierite \/ Coated","offer_id":54455973019994,"sku":null,"price":257.6,"currency_code":"GBP","in_stock":true},{"title":"228x203mm \/ Silicon carbide \/ Uncoated","offer_id":54455973052762,"sku":null,"price":161.92,"currency_code":"GBP","in_stock":true},{"title":"228x203mm \/ Silicon carbide \/ Coated","offer_id":54455973085530,"sku":null,"price":345.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/33_266fce50-b356-46cf-a396-3fcf68689fab.jpg?v=1784707490"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-190mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 190mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"190x100mm \/ Cordierite \/ Uncoated","offer_id":54456021483866,"sku":null,"price":24.15,"currency_code":"GBP","in_stock":true},{"title":"190x100mm \/ Cordierite \/ Coated","offer_id":54456021516634,"sku":null,"price":88.04,"currency_code":"GBP","in_stock":true},{"title":"190x100mm \/ Silicon carbide \/ Uncoated","offer_id":54456021549402,"sku":null,"price":55.34,"currency_code":"GBP","in_stock":true},{"title":"190x100mm \/ Silicon carbide \/ Coated","offer_id":54456021582170,"sku":null,"price":118.23,"currency_code":"GBP","in_stock":true},{"title":"190x127mm \/ Cordierite \/ Uncoated","offer_id":54456021614938,"sku":null,"price":30.72,"currency_code":"GBP","in_stock":true},{"title":"190x127mm \/ Cordierite \/ Coated","offer_id":54456021647706,"sku":null,"price":112.0,"currency_code":"GBP","in_stock":true},{"title":"190x127mm \/ Silicon carbide \/ Uncoated","offer_id":54456021680474,"sku":null,"price":70.4,"currency_code":"GBP","in_stock":true},{"title":"190x127mm \/ Silicon carbide \/ Coated","offer_id":54456021713242,"sku":null,"price":150.4,"currency_code":"GBP","in_stock":true},{"title":"190x152mm \/ Cordierite \/ Uncoated","offer_id":54456021746010,"sku":null,"price":36.78,"currency_code":"GBP","in_stock":true},{"title":"190x152mm \/ Cordierite \/ Coated","offer_id":54456021778778,"sku":null,"price":134.09,"currency_code":"GBP","in_stock":true},{"title":"190x152mm \/ Silicon carbide \/ Uncoated","offer_id":54456021811546,"sku":null,"price":84.28,"currency_code":"GBP","in_stock":true},{"title":"190x152mm \/ Silicon carbide \/ Coated","offer_id":54456021844314,"sku":null,"price":180.06,"currency_code":"GBP","in_stock":true},{"title":"190x178mm \/ Cordierite \/ Uncoated","offer_id":54456021877082,"sku":null,"price":43.01,"currency_code":"GBP","in_stock":true},{"title":"190x178mm \/ Cordierite \/ Coated","offer_id":54456021909850,"sku":null,"price":156.8,"currency_code":"GBP","in_stock":true},{"title":"190x178mm \/ Silicon carbide \/ Uncoated","offer_id":54456021942618,"sku":null,"price":98.56,"currency_code":"GBP","in_stock":true},{"title":"190x178mm \/ Silicon carbide \/ Coated","offer_id":54456021975386,"sku":null,"price":210.56,"currency_code":"GBP","in_stock":true},{"title":"190x203mm \/ Cordierite \/ Uncoated","offer_id":54456022008154,"sku":null,"price":49.07,"currency_code":"GBP","in_stock":true},{"title":"190x203mm \/ Cordierite \/ Coated","offer_id":54456022040922,"sku":null,"price":178.89,"currency_code":"GBP","in_stock":true},{"title":"190x203mm \/ Silicon carbide \/ Uncoated","offer_id":54456022073690,"sku":null,"price":112.44,"currency_code":"GBP","in_stock":true},{"title":"190x203mm \/ Silicon carbide \/ Coated","offer_id":54456022106458,"sku":null,"price":240.22,"currency_code":"GBP","in_stock":true},{"title":"190x230mm \/ Cordierite \/ Uncoated","offer_id":54456022139226,"sku":null,"price":55.64,"currency_code":"GBP","in_stock":true},{"title":"190x230mm \/ Cordierite \/ Coated","offer_id":54456022171994,"sku":null,"price":202.84,"currency_code":"GBP","in_stock":true},{"title":"190x230mm \/ Silicon carbide \/ Uncoated","offer_id":54456022204762,"sku":null,"price":127.5,"currency_code":"GBP","in_stock":true},{"title":"190x230mm \/ Silicon carbide \/ Coated","offer_id":54456022237530,"sku":null,"price":272.39,"currency_code":"GBP","in_stock":true},{"title":"190x254mm \/ Cordierite \/ Uncoated","offer_id":54456022270298,"sku":null,"price":61.44,"currency_code":"GBP","in_stock":true},{"title":"190x254mm \/ Cordierite \/ Coated","offer_id":54456022303066,"sku":null,"price":224.0,"currency_code":"GBP","in_stock":true},{"title":"190x254mm \/ Silicon carbide \/ Uncoated","offer_id":54456022335834,"sku":null,"price":140.8,"currency_code":"GBP","in_stock":true},{"title":"190x254mm \/ Silicon carbide \/ Coated","offer_id":54456022368602,"sku":null,"price":300.8,"currency_code":"GBP","in_stock":true},{"title":"190x305mm \/ Cordierite \/ Uncoated","offer_id":54456022401370,"sku":null,"price":73.73,"currency_code":"GBP","in_stock":true},{"title":"190x305mm \/ Cordierite \/ Coated","offer_id":54456022434138,"sku":null,"price":268.8,"currency_code":"GBP","in_stock":true},{"title":"190x305mm \/ Silicon carbide \/ Uncoated","offer_id":54456022466906,"sku":null,"price":168.96,"currency_code":"GBP","in_stock":true},{"title":"190x305mm \/ Silicon carbide \/ Coated","offer_id":54456022499674,"sku":null,"price":360.96,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/111_f9516599-7e05-47bb-876c-7529b47e9ece.jpg?v=1784709472"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-165mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 165mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"165x90mm \/ Cordierite \/ Uncoated","offer_id":54456132305242,"sku":null,"price":16.38,"currency_code":"GBP","in_stock":true},{"title":"165x90mm \/ Cordierite \/ Coated","offer_id":54456132338010,"sku":null,"price":59.73,"currency_code":"GBP","in_stock":true},{"title":"165x90mm \/ Silicon carbide \/ Uncoated","offer_id":54456132370778,"sku":null,"price":37.55,"currency_code":"GBP","in_stock":true},{"title":"165x90mm \/ Silicon carbide \/ Coated","offer_id":54456132403546,"sku":null,"price":80.21,"currency_code":"GBP","in_stock":true},{"title":"165x95mm \/ Cordierite \/ Uncoated","offer_id":54456132436314,"sku":null,"price":17.32,"currency_code":"GBP","in_stock":true},{"title":"165x95mm \/ Cordierite \/ Coated","offer_id":54456132469082,"sku":null,"price":63.16,"currency_code":"GBP","in_stock":true},{"title":"165x95mm \/ Silicon carbide \/ Uncoated","offer_id":54456132501850,"sku":null,"price":39.7,"currency_code":"GBP","in_stock":true},{"title":"165x95mm \/ Silicon carbide \/ Coated","offer_id":54456132534618,"sku":null,"price":84.81,"currency_code":"GBP","in_stock":true},{"title":"165x147mm \/ Cordierite \/ Uncoated","offer_id":54456132567386,"sku":null,"price":26.79,"currency_code":"GBP","in_stock":true},{"title":"165x147mm \/ Cordierite \/ Coated","offer_id":54456132600154,"sku":null,"price":97.69,"currency_code":"GBP","in_stock":true},{"title":"165x147mm \/ Silicon carbide \/ Uncoated","offer_id":54456132632922,"sku":null,"price":61.4,"currency_code":"GBP","in_stock":true},{"title":"165x147mm \/ Silicon carbide \/ Coated","offer_id":54456132665690,"sku":null,"price":131.18,"currency_code":"GBP","in_stock":true},{"title":"165x152mm \/ Cordierite \/ Uncoated","offer_id":54456132698458,"sku":null,"price":27.73,"currency_code":"GBP","in_stock":true},{"title":"165x152mm \/ Cordierite \/ Coated","offer_id":54456132731226,"sku":null,"price":101.11,"currency_code":"GBP","in_stock":true},{"title":"165x152mm \/ Silicon carbide \/ Uncoated","offer_id":54456132763994,"sku":null,"price":63.56,"currency_code":"GBP","in_stock":true},{"title":"165x152mm \/ Silicon carbide \/ Coated","offer_id":54456132796762,"sku":null,"price":135.78,"currency_code":"GBP","in_stock":true},{"title":"165x180mm \/ Cordierite \/ Uncoated","offer_id":54456132829530,"sku":null,"price":32.85,"currency_code":"GBP","in_stock":true},{"title":"165x180mm \/ Cordierite \/ Coated","offer_id":54456132862298,"sku":null,"price":119.78,"currency_code":"GBP","in_stock":true},{"title":"165x180mm \/ Silicon carbide \/ Uncoated","offer_id":54456132895066,"sku":null,"price":75.29,"currency_code":"GBP","in_stock":true},{"title":"165x180mm \/ Silicon carbide \/ Coated","offer_id":54456132927834,"sku":null,"price":160.84,"currency_code":"GBP","in_stock":true},{"title":"165x203mm \/ Cordierite \/ Uncoated","offer_id":54456132960602,"sku":null,"price":37.03,"currency_code":"GBP","in_stock":true},{"title":"165x203mm \/ Cordierite \/ Coated","offer_id":54456132993370,"sku":null,"price":135.02,"currency_code":"GBP","in_stock":true},{"title":"165x203mm \/ Silicon carbide \/ Uncoated","offer_id":54456133026138,"sku":null,"price":84.87,"currency_code":"GBP","in_stock":true},{"title":"165x203mm \/ Silicon carbide \/ Coated","offer_id":54456133058906,"sku":null,"price":181.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/333_3a55d88b-ea43-45d5-a938-4ee3ae0fa560.jpg?v=1784712911"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-160mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 160mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"160x90mm \/ Cordierite \/ Uncoated","offer_id":54456189190490,"sku":null,"price":15.45,"currency_code":"GBP","in_stock":true},{"title":"160x90mm \/ Cordierite \/ Coated","offer_id":54456191549786,"sku":null,"price":56.31,"currency_code":"GBP","in_stock":true},{"title":"160x90mm \/ Silicon carbide \/ Uncoated","offer_id":54456191582554,"sku":null,"price":35.4,"currency_code":"GBP","in_stock":true},{"title":"160x90mm \/ Silicon carbide \/ Coated","offer_id":54456191615322,"sku":null,"price":75.62,"currency_code":"GBP","in_stock":true},{"title":"160x100mm \/ Cordierite \/ Uncoated","offer_id":54456189223258,"sku":null,"price":17.15,"currency_code":"GBP","in_stock":true},{"title":"160x100mm \/ Cordierite \/ Coated","offer_id":54456191648090,"sku":null,"price":62.53,"currency_code":"GBP","in_stock":true},{"title":"160x100mm \/ Silicon carbide \/ Uncoated","offer_id":54456191680858,"sku":null,"price":39.31,"currency_code":"GBP","in_stock":true},{"title":"160x100mm \/ Silicon carbide \/ Coated","offer_id":54456191713626,"sku":null,"price":83.97,"currency_code":"GBP","in_stock":true},{"title":"160x130mm \/ Cordierite \/ Uncoated","offer_id":54456189256026,"sku":null,"price":22.27,"currency_code":"GBP","in_stock":true},{"title":"160x130mm \/ Cordierite \/ Coated","offer_id":54456191746394,"sku":null,"price":81.2,"currency_code":"GBP","in_stock":true},{"title":"160x130mm \/ Silicon carbide \/ Uncoated","offer_id":54456191779162,"sku":null,"price":51.04,"currency_code":"GBP","in_stock":true},{"title":"160x130mm \/ Silicon carbide \/ Coated","offer_id":54456191811930,"sku":null,"price":109.04,"currency_code":"GBP","in_stock":true},{"title":"160x138mm \/ Cordierite \/ Uncoated","offer_id":54456189288794,"sku":null,"price":23.64,"currency_code":"GBP","in_stock":true},{"title":"160x138mm \/ Cordierite \/ Coated","offer_id":54456191844698,"sku":null,"price":86.18,"currency_code":"GBP","in_stock":true},{"title":"160x138mm \/ Silicon carbide \/ Uncoated","offer_id":54456191877466,"sku":null,"price":54.17,"currency_code":"GBP","in_stock":true},{"title":"160x138mm \/ Silicon carbide \/ Coated","offer_id":54456191910234,"sku":null,"price":115.72,"currency_code":"GBP","in_stock":true},{"title":"160x180mm \/ Cordierite \/ Uncoated","offer_id":54456189321562,"sku":null,"price":30.89,"currency_code":"GBP","in_stock":true},{"title":"160x180mm \/ Cordierite \/ Coated","offer_id":54456191943002,"sku":null,"price":112.62,"currency_code":"GBP","in_stock":true},{"title":"160x180mm \/ Silicon carbide \/ Uncoated","offer_id":54456191975770,"sku":null,"price":70.79,"currency_code":"GBP","in_stock":true},{"title":"160x180mm \/ Silicon carbide \/ Coated","offer_id":54456192008538,"sku":null,"price":151.24,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/11_b7f03d05-9aa0-4839-b71b-43ca296e68c5.jpg?v=1784769685"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-155mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 155mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"155x100mm \/ Cordierite \/ Uncoated","offer_id":54463509201242,"sku":null,"price":16.13,"currency_code":"GBP","in_stock":true},{"title":"155x100mm \/ Cordierite \/ Coated","offer_id":54463509234010,"sku":null,"price":58.8,"currency_code":"GBP","in_stock":true},{"title":"155x100mm \/ Silicon carbide \/ Uncoated","offer_id":54463509266778,"sku":null,"price":36.96,"currency_code":"GBP","in_stock":true},{"title":"155x100mm \/ Silicon carbide \/ Coated","offer_id":54463509299546,"sku":null,"price":78.96,"currency_code":"GBP","in_stock":true},{"title":"155x140mm \/ Cordierite \/ Uncoated","offer_id":54463509332314,"sku":null,"price":22.53,"currency_code":"GBP","in_stock":true},{"title":"155x140mm \/ Cordierite \/ Coated","offer_id":54463509365082,"sku":null,"price":82.13,"currency_code":"GBP","in_stock":true},{"title":"155x140mm \/ Silicon carbide \/ Uncoated","offer_id":54463509397850,"sku":null,"price":51.63,"currency_code":"GBP","in_stock":true},{"title":"155x140mm \/ Silicon carbide \/ Coated","offer_id":54463509430618,"sku":null,"price":110.29,"currency_code":"GBP","in_stock":true},{"title":"155x180mm \/ Cordierite \/ Uncoated","offer_id":54463509463386,"sku":null,"price":28.93,"currency_code":"GBP","in_stock":true},{"title":"155x180mm \/ Cordierite \/ Coated","offer_id":54463509496154,"sku":null,"price":105.47,"currency_code":"GBP","in_stock":true},{"title":"155x180mm \/ Silicon carbide \/ Uncoated","offer_id":54463509528922,"sku":null,"price":66.29,"currency_code":"GBP","in_stock":true},{"title":"155x180mm \/ Silicon carbide \/ Coated","offer_id":54463509561690,"sku":null,"price":141.63,"currency_code":"GBP","in_stock":true},{"title":"155x190mm \/ Cordierite \/ Uncoated","offer_id":54463509594458,"sku":null,"price":30.55,"currency_code":"GBP","in_stock":true},{"title":"155x190mm \/ Cordierite \/ Coated","offer_id":54463509627226,"sku":null,"price":111.38,"currency_code":"GBP","in_stock":true},{"title":"155x190mm \/ Silicon carbide \/ Uncoated","offer_id":54463509659994,"sku":null,"price":70.01,"currency_code":"GBP","in_stock":true},{"title":"155x190mm \/ Silicon carbide \/ Coated","offer_id":54463509692762,"sku":null,"price":149.56,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/33_f07a86ca-0ae1-4f41-9067-f8d72619ef2d.jpg?v=1784770486"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-157mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 157mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"157x130mm \/ Cordierite \/ Uncoated","offer_id":54463515492698,"sku":null,"price":21.5,"currency_code":"GBP","in_stock":true},{"title":"157x130mm \/ Cordierite \/ Coated","offer_id":54463515525466,"sku":null,"price":78.4,"currency_code":"GBP","in_stock":true},{"title":"157x130mm \/ Silicon carbide \/ Uncoated","offer_id":54463515558234,"sku":null,"price":49.28,"currency_code":"GBP","in_stock":true},{"title":"157x130mm \/ Silicon carbide \/ Coated","offer_id":54463515591002,"sku":null,"price":105.28,"currency_code":"GBP","in_stock":true},{"title":"157x140mm \/ Cordierite \/ Uncoated","offer_id":54463515623770,"sku":null,"price":23.13,"currency_code":"GBP","in_stock":true},{"title":"157x140mm \/ Cordierite \/ Coated","offer_id":54463515656538,"sku":null,"price":84.31,"currency_code":"GBP","in_stock":true},{"title":"157x140mm \/ Silicon carbide \/ Uncoated","offer_id":54463515689306,"sku":null,"price":53.0,"currency_code":"GBP","in_stock":true},{"title":"157x140mm \/ Silicon carbide \/ Coated","offer_id":54463515722074,"sku":null,"price":113.22,"currency_code":"GBP","in_stock":true},{"title":"157x170mm \/ Cordierite \/ Uncoated","offer_id":54463515754842,"sku":null,"price":28.07,"currency_code":"GBP","in_stock":true},{"title":"157x170mm \/ Cordierite \/ Coated","offer_id":54463515787610,"sku":null,"price":102.36,"currency_code":"GBP","in_stock":true},{"title":"157x170mm \/ Silicon carbide \/ Uncoated","offer_id":54463515820378,"sku":null,"price":64.34,"currency_code":"GBP","in_stock":true},{"title":"157x170mm \/ Silicon carbide \/ Coated","offer_id":54463515853146,"sku":null,"price":137.45,"currency_code":"GBP","in_stock":true},{"title":"157x180mm \/ Cordierite \/ Uncoated","offer_id":54463515885914,"sku":null,"price":29.7,"currency_code":"GBP","in_stock":true},{"title":"157x180mm \/ Cordierite \/ Coated","offer_id":54463515918682,"sku":null,"price":108.27,"currency_code":"GBP","in_stock":true},{"title":"157x180mm \/ Silicon carbide \/ Uncoated","offer_id":54463515951450,"sku":null,"price":68.05,"currency_code":"GBP","in_stock":true},{"title":"157x180mm \/ Silicon carbide \/ Coated","offer_id":54463515984218,"sku":null,"price":145.39,"currency_code":"GBP","in_stock":true},{"title":"157x188mm \/ Cordierite \/ Uncoated","offer_id":54463516016986,"sku":null,"price":31.06,"currency_code":"GBP","in_stock":true},{"title":"157x188mm \/ Cordierite \/ Coated","offer_id":54463516049754,"sku":null,"price":113.24,"currency_code":"GBP","in_stock":true},{"title":"157x188mm \/ Silicon carbide \/ Uncoated","offer_id":54463516082522,"sku":null,"price":71.18,"currency_code":"GBP","in_stock":true},{"title":"157x188mm \/ Silicon carbide \/ Coated","offer_id":54463516115290,"sku":null,"price":152.07,"currency_code":"GBP","in_stock":true},{"title":"157x191mm \/ Cordierite \/ Uncoated","offer_id":54463516148058,"sku":null,"price":31.57,"currency_code":"GBP","in_stock":true},{"title":"157x191mm \/ Cordierite \/ Coated","offer_id":54463516180826,"sku":null,"price":115.11,"currency_code":"GBP","in_stock":true},{"title":"157x191mm \/ Silicon carbide \/ Uncoated","offer_id":54463516213594,"sku":null,"price":72.36,"currency_code":"GBP","in_stock":true},{"title":"157x191mm \/ Silicon carbide \/ Coated","offer_id":54463516246362,"sku":null,"price":154.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/11_11789042-7c94-45ec-875a-c62ac9044a1c.jpg?v=1784771243"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-144mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 144mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"144x100mm \/ Cordierite \/ Uncoated","offer_id":54463522701658,"sku":null,"price":13.91,"currency_code":"GBP","in_stock":true},{"title":"144x100mm \/ Cordierite \/ Coated","offer_id":54463522734426,"sku":null,"price":50.71,"currency_code":"GBP","in_stock":true},{"title":"144x100mm \/ Silicon carbide \/ Uncoated","offer_id":54463522767194,"sku":null,"price":31.88,"currency_code":"GBP","in_stock":true},{"title":"144x100mm \/ Silicon carbide \/ Coated","offer_id":54463522799962,"sku":null,"price":68.1,"currency_code":"GBP","in_stock":true},{"title":"144x120mm \/ Cordierite \/ Uncoated","offer_id":54463522832730,"sku":null,"price":16.64,"currency_code":"GBP","in_stock":true},{"title":"144x120mm \/ Cordierite \/ Coated","offer_id":54463522865498,"sku":null,"price":60.67,"currency_code":"GBP","in_stock":true},{"title":"144x120mm \/ Silicon carbide \/ Uncoated","offer_id":54463522898266,"sku":null,"price":38.13,"currency_code":"GBP","in_stock":true},{"title":"144x120mm \/ Silicon carbide \/ Coated","offer_id":54463522931034,"sku":null,"price":81.47,"currency_code":"GBP","in_stock":true},{"title":"144x127mm \/ Cordierite \/ Uncoated","offer_id":54463522963802,"sku":null,"price":17.66,"currency_code":"GBP","in_stock":true},{"title":"144x127mm \/ Cordierite \/ Coated","offer_id":54463522996570,"sku":null,"price":64.4,"currency_code":"GBP","in_stock":true},{"title":"144x127mm \/ Silicon carbide \/ Uncoated","offer_id":54463523029338,"sku":null,"price":40.48,"currency_code":"GBP","in_stock":true},{"title":"144x127mm \/ Silicon carbide \/ Coated","offer_id":54463523062106,"sku":null,"price":86.48,"currency_code":"GBP","in_stock":true},{"title":"144x152mm \/ Cordierite \/ Uncoated","offer_id":54463523094874,"sku":null,"price":21.08,"currency_code":"GBP","in_stock":true},{"title":"144x152mm \/ Cordierite \/ Coated","offer_id":54463523127642,"sku":null,"price":76.84,"currency_code":"GBP","in_stock":true},{"title":"144x152mm \/ Silicon carbide \/ Uncoated","offer_id":54463523160410,"sku":null,"price":48.3,"currency_code":"GBP","in_stock":true},{"title":"144x152mm \/ Silicon carbide \/ Coated","offer_id":54463523193178,"sku":null,"price":103.19,"currency_code":"GBP","in_stock":true},{"title":"144x178mm \/ Cordierite \/ Uncoated","offer_id":54463523225946,"sku":null,"price":24.75,"currency_code":"GBP","in_stock":true},{"title":"144x178mm \/ Cordierite \/ Coated","offer_id":54463523258714,"sku":null,"price":90.22,"currency_code":"GBP","in_stock":true},{"title":"144x178mm \/ Silicon carbide \/ Uncoated","offer_id":54463523291482,"sku":null,"price":56.71,"currency_code":"GBP","in_stock":true},{"title":"144x178mm \/ Silicon carbide \/ Coated","offer_id":54463523324250,"sku":null,"price":121.16,"currency_code":"GBP","in_stock":true},{"title":"144x203mm \/ Cordierite \/ Uncoated","offer_id":54463523357018,"sku":null,"price":28.16,"currency_code":"GBP","in_stock":true},{"title":"144x203mm \/ Cordierite \/ Coated","offer_id":54463523389786,"sku":null,"price":102.67,"currency_code":"GBP","in_stock":true},{"title":"144x203mm \/ Silicon carbide \/ Uncoated","offer_id":54463523422554,"sku":null,"price":64.53,"currency_code":"GBP","in_stock":true},{"title":"144x203mm \/ Silicon carbide \/ Coated","offer_id":54463523455322,"sku":null,"price":137.87,"currency_code":"GBP","in_stock":true},{"title":"144x216mm \/ Cordierite \/ Uncoated","offer_id":54463523488090,"sku":null,"price":30.04,"currency_code":"GBP","in_stock":true},{"title":"144x216mm \/ Cordierite \/ Coated","offer_id":54463523520858,"sku":null,"price":109.51,"currency_code":"GBP","in_stock":true},{"title":"144x216mm \/ Silicon carbide \/ Uncoated","offer_id":54463523553626,"sku":null,"price":68.84,"currency_code":"GBP","in_stock":true},{"title":"144x216mm \/ Silicon carbide \/ Coated","offer_id":54463523586394,"sku":null,"price":147.06,"currency_code":"GBP","in_stock":true},{"title":"144x228mm \/ Cordierite \/ Uncoated","offer_id":54463523619162,"sku":null,"price":31.66,"currency_code":"GBP","in_stock":true},{"title":"144x228mm \/ Cordierite \/ Coated","offer_id":54463523651930,"sku":null,"price":115.42,"currency_code":"GBP","in_stock":true},{"title":"144x228mm \/ Silicon carbide \/ Uncoated","offer_id":54463523684698,"sku":null,"price":72.55,"currency_code":"GBP","in_stock":true},{"title":"144x228mm \/ Silicon carbide \/ Coated","offer_id":54463523717466,"sku":null,"price":155.0,"currency_code":"GBP","in_stock":true},{"title":"144x254mm \/ Cordierite \/ Uncoated","offer_id":54463523750234,"sku":null,"price":35.24,"currency_code":"GBP","in_stock":true},{"title":"144x254mm \/ Cordierite \/ Coated","offer_id":54463523783002,"sku":null,"price":128.49,"currency_code":"GBP","in_stock":true},{"title":"144x254mm \/ Silicon carbide \/ Uncoated","offer_id":54463523815770,"sku":null,"price":80.76,"currency_code":"GBP","in_stock":true},{"title":"144x254mm \/ Silicon carbide \/ Coated","offer_id":54463523848538,"sku":null,"price":172.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/33_4f8d1228-d094-4a71-ac2b-cc0a13ad3fc6.jpg?v=1784772672"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-118mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 118mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"118x100mm \/ Cordierite \/ Uncoated","offer_id":54463535710554,"sku":null,"price":9.3,"currency_code":"GBP","in_stock":true},{"title":"118x100mm \/ Cordierite \/ Coated","offer_id":54463535743322,"sku":null,"price":33.91,"currency_code":"GBP","in_stock":true},{"title":"118x100mm \/ Silicon carbide \/ Uncoated","offer_id":54463535776090,"sku":null,"price":21.32,"currency_code":"GBP","in_stock":true},{"title":"118x100mm \/ Silicon carbide \/ Coated","offer_id":54463535808858,"sku":null,"price":45.54,"currency_code":"GBP","in_stock":true},{"title":"118x127mm \/ Cordierite \/ Uncoated","offer_id":54463535841626,"sku":null,"price":11.86,"currency_code":"GBP","in_stock":true},{"title":"118x127mm \/ Cordierite \/ Coated","offer_id":54463535874394,"sku":null,"price":43.24,"currency_code":"GBP","in_stock":true},{"title":"118x127mm \/ Silicon carbide \/ Uncoated","offer_id":54463535907162,"sku":null,"price":27.18,"currency_code":"GBP","in_stock":true},{"title":"118x127mm \/ Silicon carbide \/ Coated","offer_id":54463535939930,"sku":null,"price":58.07,"currency_code":"GBP","in_stock":true},{"title":"118x152mm \/ Cordierite \/ Uncoated","offer_id":54463535972698,"sku":null,"price":14.17,"currency_code":"GBP","in_stock":true},{"title":"118x152mm \/ Cordierite \/ Coated","offer_id":54463536005466,"sku":null,"price":51.64,"currency_code":"GBP","in_stock":true},{"title":"118x152mm \/ Silicon carbide \/ Uncoated","offer_id":54463536038234,"sku":null,"price":32.46,"currency_code":"GBP","in_stock":true},{"title":"118x152mm \/ Silicon carbide \/ Coated","offer_id":54463536071002,"sku":null,"price":69.35,"currency_code":"GBP","in_stock":true},{"title":"118x203mm \/ Cordierite \/ Uncoated","offer_id":54463536103770,"sku":null,"price":18.94,"currency_code":"GBP","in_stock":true},{"title":"118x203mm \/ Cordierite \/ Coated","offer_id":54463536136538,"sku":null,"price":69.07,"currency_code":"GBP","in_stock":true},{"title":"118x203mm \/ Silicon carbide \/ Uncoated","offer_id":54463536169306,"sku":null,"price":43.41,"currency_code":"GBP","in_stock":true},{"title":"118x203mm \/ Silicon carbide \/ Coated","offer_id":54463536202074,"sku":null,"price":92.75,"currency_code":"GBP","in_stock":true},{"title":"118x210mm \/ Cordierite \/ Uncoated","offer_id":54463536234842,"sku":null,"price":19.63,"currency_code":"GBP","in_stock":true},{"title":"118x210mm \/ Cordierite \/ Coated","offer_id":54463536267610,"sku":null,"price":71.56,"currency_code":"GBP","in_stock":true},{"title":"118x210mm \/ Silicon carbide \/ Uncoated","offer_id":54463536300378,"sku":null,"price":44.98,"currency_code":"GBP","in_stock":true},{"title":"118x210mm \/ Silicon carbide \/ Coated","offer_id":54463536333146,"sku":null,"price":96.09,"currency_code":"GBP","in_stock":true},{"title":"118x254mm \/ Cordierite \/ Uncoated","offer_id":54463536365914,"sku":null,"price":23.72,"currency_code":"GBP","in_stock":true},{"title":"118x254mm \/ Cordierite \/ Coated","offer_id":54463536398682,"sku":null,"price":86.49,"currency_code":"GBP","in_stock":true},{"title":"118x254mm \/ Silicon carbide \/ Uncoated","offer_id":54463536431450,"sku":null,"price":54.36,"currency_code":"GBP","in_stock":true},{"title":"118x254mm \/ Silicon carbide \/ Coated","offer_id":54463536464218,"sku":null,"price":116.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/11_365402aa-10f2-4a4b-a026-a3c7f3129a90.jpg?v=1784775163"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-132mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 132mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"132x100mm \/ Cordierite \/ Uncoated","offer_id":54463540068698,"sku":null,"price":11.69,"currency_code":"GBP","in_stock":true},{"title":"132x100mm \/ Cordierite \/ Coated","offer_id":54463540101466,"sku":null,"price":42.62,"currency_code":"GBP","in_stock":true},{"title":"132x100mm \/ Silicon carbide \/ Uncoated","offer_id":54463540134234,"sku":null,"price":26.79,"currency_code":"GBP","in_stock":true},{"title":"132x100mm \/ Silicon carbide \/ Coated","offer_id":54463540167002,"sku":null,"price":57.24,"currency_code":"GBP","in_stock":true},{"title":"132x127mm \/ Cordierite \/ Uncoated","offer_id":54463540199770,"sku":null,"price":14.85,"currency_code":"GBP","in_stock":true},{"title":"132x127mm \/ Cordierite \/ Coated","offer_id":54463540232538,"sku":null,"price":54.13,"currency_code":"GBP","in_stock":true},{"title":"132x127mm \/ Silicon carbide \/ Uncoated","offer_id":54463540265306,"sku":null,"price":34.03,"currency_code":"GBP","in_stock":true},{"title":"132x127mm \/ Silicon carbide \/ Coated","offer_id":54463540298074,"sku":null,"price":72.69,"currency_code":"GBP","in_stock":true},{"title":"132x145mm \/ Cordierite \/ Uncoated","offer_id":54463540330842,"sku":null,"price":16.9,"currency_code":"GBP","in_stock":true},{"title":"132x145mm \/ Cordierite \/ Coated","offer_id":54463540363610,"sku":null,"price":61.6,"currency_code":"GBP","in_stock":true},{"title":"132x145mm \/ Silicon carbide \/ Uncoated","offer_id":54463540396378,"sku":null,"price":38.72,"currency_code":"GBP","in_stock":true},{"title":"132x145mm \/ Silicon carbide \/ Coated","offer_id":54463540429146,"sku":null,"price":82.72,"currency_code":"GBP","in_stock":true},{"title":"132x150mm \/ Cordierite \/ Uncoated","offer_id":54463540461914,"sku":null,"price":17.49,"currency_code":"GBP","in_stock":true},{"title":"132x150mm \/ Cordierite \/ Coated","offer_id":54463540494682,"sku":null,"price":63.78,"currency_code":"GBP","in_stock":true},{"title":"132x150mm \/ Silicon carbide \/ Uncoated","offer_id":54463540527450,"sku":null,"price":40.09,"currency_code":"GBP","in_stock":true},{"title":"132x150mm \/ Silicon carbide \/ Coated","offer_id":54463540560218,"sku":null,"price":85.64,"currency_code":"GBP","in_stock":true},{"title":"132x170mm \/ Cordierite \/ Uncoated","offer_id":54463540592986,"sku":null,"price":19.88,"currency_code":"GBP","in_stock":true},{"title":"132x170mm \/ Cordierite \/ Coated","offer_id":54463540625754,"sku":null,"price":72.49,"currency_code":"GBP","in_stock":true},{"title":"132x170mm \/ Silicon carbide \/ Uncoated","offer_id":54463540658522,"sku":null,"price":45.56,"currency_code":"GBP","in_stock":true},{"title":"132x170mm \/ Silicon carbide \/ Coated","offer_id":54463540691290,"sku":null,"price":97.34,"currency_code":"GBP","in_stock":true},{"title":"132x178mm \/ Cordierite \/ Uncoated","offer_id":54463540724058,"sku":null,"price":20.74,"currency_code":"GBP","in_stock":true},{"title":"132x178mm \/ Cordierite \/ Coated","offer_id":54463540756826,"sku":null,"price":75.6,"currency_code":"GBP","in_stock":true},{"title":"132x178mm \/ Silicon carbide \/ Uncoated","offer_id":54463540789594,"sku":null,"price":47.52,"currency_code":"GBP","in_stock":true},{"title":"132x178mm \/ Silicon carbide \/ Coated","offer_id":54463540822362,"sku":null,"price":101.52,"currency_code":"GBP","in_stock":true},{"title":"132x203mm \/ Cordierite \/ Uncoated","offer_id":54463540855130,"sku":null,"price":23.72,"currency_code":"GBP","in_stock":true},{"title":"132x203mm \/ Cordierite \/ Coated","offer_id":54463540887898,"sku":null,"price":86.49,"currency_code":"GBP","in_stock":true},{"title":"132x203mm \/ Silicon carbide \/ Uncoated","offer_id":54463540920666,"sku":null,"price":54.36,"currency_code":"GBP","in_stock":true},{"title":"132x203mm \/ Silicon carbide \/ Coated","offer_id":54463540953434,"sku":null,"price":116.14,"currency_code":"GBP","in_stock":true},{"title":"132x254mm \/ Cordierite \/ Uncoated","offer_id":54463540986202,"sku":null,"price":29.61,"currency_code":"GBP","in_stock":true},{"title":"132x254mm \/ Cordierite \/ Coated","offer_id":54463541018970,"sku":null,"price":107.96,"currency_code":"GBP","in_stock":true},{"title":"132x254mm \/ Silicon carbide \/ Uncoated","offer_id":54463541051738,"sku":null,"price":67.86,"currency_code":"GBP","in_stock":true},{"title":"132x254mm \/ Silicon carbide \/ Coated","offer_id":54463541084506,"sku":null,"price":144.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/33_43f46041-0602-4c62-8afb-6f0512f88e6d.jpg?v=1784777440"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-300mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 300mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"300x254mm \/ Cordierite \/ Uncoated","offer_id":54463569789274,"sku":null,"price":153.17,"currency_code":"GBP","in_stock":true},{"title":"300x254mm \/ Cordierite \/ Coated","offer_id":54463569822042,"sku":null,"price":558.44,"currency_code":"GBP","in_stock":true},{"title":"300x254mm \/ Silicon carbide \/ Uncoated","offer_id":54463569854810,"sku":null,"price":351.02,"currency_code":"GBP","in_stock":true},{"title":"300x254mm \/ Silicon carbide \/ Coated","offer_id":54463569887578,"sku":null,"price":749.91,"currency_code":"GBP","in_stock":true},{"title":"300x290mm \/ Cordierite \/ Uncoated","offer_id":54463569920346,"sku":null,"price":174.85,"currency_code":"GBP","in_stock":true},{"title":"300x290mm \/ Cordierite \/ Coated","offer_id":54463569953114,"sku":null,"price":637.47,"currency_code":"GBP","in_stock":true},{"title":"300x290mm \/ Silicon carbide \/ Uncoated","offer_id":54463569985882,"sku":null,"price":400.69,"currency_code":"GBP","in_stock":true},{"title":"300x290mm \/ Silicon carbide \/ Coated","offer_id":54463570018650,"sku":null,"price":856.03,"currency_code":"GBP","in_stock":true},{"title":"300x320mm \/ Cordierite \/ Uncoated","offer_id":54463570051418,"sku":null,"price":192.94,"currency_code":"GBP","in_stock":true},{"title":"300x320mm \/ Cordierite \/ Coated","offer_id":54463570084186,"sku":null,"price":703.42,"currency_code":"GBP","in_stock":true},{"title":"300x320mm \/ Silicon carbide \/ Uncoated","offer_id":54463570116954,"sku":null,"price":442.15,"currency_code":"GBP","in_stock":true},{"title":"300x320mm \/ Silicon carbide \/ Coated","offer_id":54463570149722,"sku":null,"price":944.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/11_1fb1d7dd-8484-4d78-993a-e8a35966944e.jpg?v=1784785235"},{"product_id":"dpf-scrf-sic-ceramic-diesel-particulate-filter-144mm-5-67","title":"DPF\/SCRF SiC Ceramic Diesel Particulate Filter 144mm (5.67\")","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是SDPF\/SCRF --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is SDPF \/ SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eSDPF\u003c\/strong\u003e (Selective Catalytic Reduction Filter) or \u003cstrong\u003eSCRF\u003c\/strong\u003e (SCR on Filter) is an integrated after‑treatment device that combines a DPF (Diesel Particulate Filter) with an SCR (Selective Catalytic Reduction) catalyst coating on the same substrate. This configuration simultaneously removes particulate matter (soot) and reduces NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eStructure and operating principle:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe SCRF is positioned close to the engine outlet (tight‑coupled) to reach urea decomposition temperature and SCR light‑off temperature quickly, avoiding excessive NO\u003csub\u003ex\u003c\/sub\u003e emissions during cold starts.\u003c\/li\u003e\n        \u003cli\u003eUrea is injected upstream of the SCRF; the generated NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the SCR catalyst layer, while the filter walls trap soot.\u003c\/li\u003e\n        \u003cli\u003eAt low temperatures (below 200°C), urea decomposition is incomplete and NO\u003csub\u003e2\u003c\/sub\u003e conversion is limited. The tight‑coupled SCRF overcomes this by achieving faster warm‑up.\u003c\/li\u003e\n        \u003cli\u003eA downstream under‑floor SCR catalyst (with higher catalyst loading) provides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion during normal driving. Some heavy‑duty systems also include a small auxiliary SCR with an ASC (Ammonia Slip Catalyst) to control excess NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors upstream of the DOC and downstream of the SCRF are used to control urea dosing and monitor SCRF performance.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis layout (DOC + SCRF close‑coupled + under‑floor SCR) is typical for modern Euro 6 heavy‑duty diesel engines.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – SDPF和DPF之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between SDPF (SCRF) and DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eAlthough both are wall‑flow ceramic filters, SDPF (SCRF) and DPF differ significantly in design and function:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eFeature\u003c\/th\u003e\n            \u003cth\u003eSDPF \/ SCRF\u003c\/th\u003e\n            \u003cth\u003eDPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePrimary function\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSimultaneous particulate filtration and NO\u003csub\u003ex\u003c\/sub\u003e reduction (SCR)\u003c\/td\u003e\n            \u003ctd\u003eOnly particulate filtration\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains SCR catalyst (e.g., Cu‑zeolite) with precious metals\u003c\/td\u003e\n            \u003ctd\u003eTypically uncoated or only catalysed for soot oxidation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher porosity (typically \u0026gt; 50%) to allow SCR coating penetration and to maintain low backpressure\u003c\/td\u003e\n            \u003ctd\u003eLower porosity (typically 40‑50%)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea injection\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eRequires urea dosing upstream\u003c\/td\u003e\n            \u003ctd\u003eNo urea required\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eConverts NO\u003csub\u003ex\u003c\/sub\u003e to N\u003csub\u003e2\u003c\/sub\u003e using NH\u003csub\u003e3\u003c\/sub\u003e\n\u003c\/td\u003e\n            \u003ctd\u003eDoes not reduce NO\u003csub\u003ex\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6 heavy‑duty and light‑duty diesel vehicles\u003c\/td\u003e\n            \u003ctd\u003eEuro 4\/5 vehicles, or as a stand‑alone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher due to coating and complex design\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eThe key structural difference is that the SDPF\/SCRF has \u003cstrong\u003ehigher porosity\u003c\/strong\u003e to accommodate the SCR washcoat without excessively increasing backpressure.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – SDPF的示例图（根据图片用文字描述） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Example performance diagram of SDPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe following diagram illustrates the NO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency of a close‑coupled SCRF system compared to an under‑floor SCR system, based on real test data.\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eSystem\u003c\/th\u003e\n            \u003cth\u003eTemperature range\u003c\/th\u003e\n            \u003cth\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency\u003c\/th\u003e\n            \u003cth\u003eKey remarks\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\n\u003cstrong\u003ecc‑SCRF\u003c\/strong\u003e (close‑coupled)\u003c\/td\u003e\n            \u003ctd\u003e200 – 400°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% at 250°C, exceeds 90% above 300°C\u003c\/td\u003e\n            \u003ctd\u003eFast light‑off, active during cold start and warm‑up\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUnder‑floor main SCR\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e300 – 600°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% only above 400°C\u003c\/td\u003e\n            \u003ctd\u003eHigher catalyst loading, but slower light‑off\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eAuxiliary small SCR (with ASC)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e200 – 450°C\u003c\/td\u003e\n            \u003ctd\u003eProvides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion and ammonia slip control\u003c\/td\u003e\n            \u003ctd\u003eOften used in heavy‑duty vehicles\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eDiagram interpretation:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe cc‑SCRF (solid curve) achieves high NO\u003csub\u003ex\u003c\/sub\u003e conversion (\u0026gt;80%) already at ~250°C, while the under‑floor SCR (dashed curve) reaches the same level only above 400°C.\u003c\/li\u003e\n        \u003cli\u003eTwo urea injection points are shown: one upstream of the cc‑SCRF and a second upstream of the under‑floor SCR (for heavy‑duty applications).\u003c\/li\u003e\n        \u003cli\u003eA small auxiliary SCR is placed downstream to handle residual NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors before and after the system enable precise urea dosing and performance monitoring.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis configuration ensures optimal NO\u003csub\u003ex\u003c\/sub\u003e reduction across the entire operating range, especially during transient conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – SDPF\/SCRF 涂PT和不涂PT之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between Pt‑coated and uncoated SDPF\/SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe coating of platinum (Pt) on the SDPF\/SCRF significantly affects performance, especially at low temperatures. Here is a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003ePt‑coated SDPF\/SCRF\u003c\/th\u003e\n            \u003cth\u003eUncoated SDPF\/SCRF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO oxidation\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnables NO → NO\u003csub\u003e2\u003c\/sub\u003e conversion, improving low‑temperature SCR performance\u003c\/td\u003e\n            \u003ctd\u003eLimited NO oxidation; relies mainly on engine‑out NO\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eLow‑temperature activity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher activity below 250°C due to faster NH\u003csub\u003e3\u003c\/sub\u003e activation and NO\u003csub\u003e2\u003c\/sub\u003e promotion\u003c\/td\u003e\n            \u003ctd\u003eLower activity; needs higher temperature for effective SCR\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea decomposition\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSlightly improved due to local heat release from oxidation reactions\u003c\/td\u003e\n            \u003ctd\u003eNo such benefit\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePassive regeneration\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnhanced soot oxidation (due to NO\u003csub\u003e2\u003c\/sub\u003e) – lowers regeneration temperature\u003c\/td\u003e\n            \u003ctd\u003eHigher soot oxidation temperature, more active regeneration needed\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePt may suffer from sulfur poisoning and thermal ageing\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no precious metal degradation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSignificantly more expensive\u003c\/td\u003e\n            \u003ctd\u003eLower cost\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6d, cold‑start heavy‑duty, and vehicles with frequent low‑load operation\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 without extreme cold‑start demands\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn summary, Pt coating greatly improves cold‑start NO\u003csub\u003ex\u003c\/sub\u003e reduction and passive regeneration, but adds cost and complexity. The choice depends on emission targets and operating conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 我们的SDPF\/SCRF使用的是什么SCR基材 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e Which SCR substrate material do we use?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur SDPF\/SCRF products use a \u003cstrong\u003ecopper‑based zeolite (Cu‑zeolite)\u003c\/strong\u003e as the SCR catalyst material.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey advantages of Cu‑zeolite SCR:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExcellent low‑temperature activity:\u003c\/strong\u003e Effective even below 200°C, ideal for cold‑start and low‑load conditions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh hydrothermal durability:\u003c\/strong\u003e Withstands temperatures up to 650°C without significant degradation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGood resistance to sulfur poisoning\u003c\/strong\u003e compared to iron‑based zeolites.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBroad operating window:\u003c\/strong\u003e Maintains high NO\u003csub\u003ex\u003c\/sub\u003e conversion from 200°C to 500°C.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLower precious metal content\u003c\/strong\u003e than vanadium‑based systems, reducing cost.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis Cu‑zeolite coating is applied to the cordierite or silicon carbide DPF substrate (depending on the model) to provide both particulate filtration and SCR functionality in a single unit.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – SDPF\/SCRF的主要功能和工作原理是什么？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e Main functions and working principle of SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eMain functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eParticulate filtration:\u003c\/strong\u003e Traps soot and ash particles from diesel exhaust, reducing PM emissions by \u0026gt; 90%.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e reduction:\u003c\/strong\u003e Converts nitrogen oxides (NO and NO₂) into harmless nitrogen (N₂) and water (H₂O) via selective catalytic reduction.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePassive soot oxidation:\u003c\/strong\u003e Generates NO₂ from NO (with Pt coating) to oxidise trapped soot at lower temperatures, reducing regeneration frequency.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eWorking principle (step‑by‑step):\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExhaust gas enters the SCRF\u003c\/strong\u003e – containing NO, NO₂, soot, and other gaseous pollutants.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUrea injection\u003c\/strong\u003e – AdBlue (urea‑water solution) is sprayed upstream; it decomposes into NH\u003csub\u003e3\u003c\/sub\u003e and CO₂.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNH\u003csub\u003e3\u003c\/sub\u003e mixes with exhaust\u003c\/strong\u003e and flows into the SCRF channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration\u003c\/strong\u003e – The wall‑flow structure forces the gas through the porous walls, trapping soot on the inlet channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSCR reaction\u003c\/strong\u003e – NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the Cu‑zeolite catalyst layer on the filter walls, producing N₂ and H₂O.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration\u003c\/strong\u003e – Accumulated soot is periodically burned off via passive oxidation (using NO₂) or active regeneration (raising exhaust temperature to ~600°C).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eClean gas exits\u003c\/strong\u003e – with significantly reduced particulate and NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/li\u003e\n      \u003c\/ol\u003e\n      \u003cp\u003eThis integrated design saves space, reduces system complexity, and improves overall emission control efficiency compared to separate DPF + SCR units.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 堇青石材质和碳化硅的区别？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Difference between cordierite and silicon carbide materials?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are used as DPF\/SCRF substrates. Their differences are summarized below:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide (SiC)\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal expansion coefficient\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eVery low (~1.5×10⁻⁶\/℃)\u003c\/td\u003e\n            \u003ctd\u003eHigher (~4.0×10⁻⁶\/℃)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal shock resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited above 1000°C\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands high thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaximum operating temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1200°C\u003c\/td\u003e\n            \u003ctd\u003e~1600°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50% (can be tailored)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHeavier\u003c\/td\u003e\n            \u003ctd\u003eLighter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn general, cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions, especially where frequent regeneration is required.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – SDPF\/SCRF最小起订量 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e Minimum order quantity (MOQ) for SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur minimum order quantities vary by material type:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSilicon Carbide (SiC) material:\u003c\/strong\u003e \u003cstrong\u003e3 pieces\u003c\/strong\u003e (3pcs)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCordierite material:\u003c\/strong\u003e \u003cstrong\u003e10 pieces\u003c\/strong\u003e (10pcs)\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThese MOQs are set to ensure efficient production and coating processes. For larger volumes, we offer competitive pricing and shorter lead times. If you require a specific quantity below these MOQs, please contact our sales team to discuss possibilities.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 公司总部地址 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 如何联系我们 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"Cordierite \/ SCR Coating \/ 144x125mm","offer_id":54463636865370,"sku":null,"price":52.33,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ SCR Coating \/ 144x152mm","offer_id":54463636898138,"sku":null,"price":63.67,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ SCR Coating \/ 144x178mm","offer_id":54463636930906,"sku":null,"price":74.76,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ SCR Coating \/ 144x203mm","offer_id":54463636963674,"sku":null,"price":85.07,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 144x125mm","offer_id":54463636996442,"sku":null,"price":90.22,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 144x152mm","offer_id":54463637029210,"sku":null,"price":109.78,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 144x178mm","offer_id":54463637061978,"sku":null,"price":128.89,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 144x203mm","offer_id":54463637094746,"sku":null,"price":146.67,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 144x125mm","offer_id":54463637127514,"sku":null,"price":77.59,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 144x152mm","offer_id":54463637160282,"sku":null,"price":94.41,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 144x178mm","offer_id":54463637193050,"sku":null,"price":110.84,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 144x203mm","offer_id":54463637225818,"sku":null,"price":126.13,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 144x125mm","offer_id":54463637258586,"sku":null,"price":115.48,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 144x152mm","offer_id":54463637291354,"sku":null,"price":140.52,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 144x178mm","offer_id":54463637324122,"sku":null,"price":164.98,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 144x203mm","offer_id":54463637356890,"sku":null,"price":187.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/333_92cb530d-07ca-42b9-8f1f-5b73c8e8f411.jpg?v=1784790018"},{"product_id":"dpf-scrf-sic-ceramic-diesel-particulate-filter-158mm-6-22","title":"DPF\/SCRF SiC Ceramic Diesel Particulate Filter 158mm (6.22\")","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是SDPF\/SCRF --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is SDPF \/ SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eSDPF\u003c\/strong\u003e (Selective Catalytic Reduction Filter) or \u003cstrong\u003eSCRF\u003c\/strong\u003e (SCR on Filter) is an integrated after‑treatment device that combines a DPF (Diesel Particulate Filter) with an SCR (Selective Catalytic Reduction) catalyst coating on the same substrate. This configuration simultaneously removes particulate matter (soot) and reduces NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eStructure and operating principle:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe SCRF is positioned close to the engine outlet (tight‑coupled) to reach urea decomposition temperature and SCR light‑off temperature quickly, avoiding excessive NO\u003csub\u003ex\u003c\/sub\u003e emissions during cold starts.\u003c\/li\u003e\n        \u003cli\u003eUrea is injected upstream of the SCRF; the generated NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the SCR catalyst layer, while the filter walls trap soot.\u003c\/li\u003e\n        \u003cli\u003eAt low temperatures (below 200°C), urea decomposition is incomplete and NO\u003csub\u003e2\u003c\/sub\u003e conversion is limited. The tight‑coupled SCRF overcomes this by achieving faster warm‑up.\u003c\/li\u003e\n        \u003cli\u003eA downstream under‑floor SCR catalyst (with higher catalyst loading) provides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion during normal driving. Some heavy‑duty systems also include a small auxiliary SCR with an ASC (Ammonia Slip Catalyst) to control excess NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors upstream of the DOC and downstream of the SCRF are used to control urea dosing and monitor SCRF performance.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis layout (DOC + SCRF close‑coupled + under‑floor SCR) is typical for modern Euro 6 heavy‑duty diesel engines.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – SDPF和DPF之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between SDPF (SCRF) and DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eAlthough both are wall‑flow ceramic filters, SDPF (SCRF) and DPF differ significantly in design and function:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eFeature\u003c\/th\u003e\n            \u003cth\u003eSDPF \/ SCRF\u003c\/th\u003e\n            \u003cth\u003eDPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePrimary function\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSimultaneous particulate filtration and NO\u003csub\u003ex\u003c\/sub\u003e reduction (SCR)\u003c\/td\u003e\n            \u003ctd\u003eOnly particulate filtration\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains SCR catalyst (e.g., Cu‑zeolite) with precious metals\u003c\/td\u003e\n            \u003ctd\u003eTypically uncoated or only catalysed for soot oxidation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher porosity (typically \u0026gt; 50%) to allow SCR coating penetration and to maintain low backpressure\u003c\/td\u003e\n            \u003ctd\u003eLower porosity (typically 40‑50%)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea injection\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eRequires urea dosing upstream\u003c\/td\u003e\n            \u003ctd\u003eNo urea required\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eConverts NO\u003csub\u003ex\u003c\/sub\u003e to N\u003csub\u003e2\u003c\/sub\u003e using NH\u003csub\u003e3\u003c\/sub\u003e\n\u003c\/td\u003e\n            \u003ctd\u003eDoes not reduce NO\u003csub\u003ex\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6 heavy‑duty and light‑duty diesel vehicles\u003c\/td\u003e\n            \u003ctd\u003eEuro 4\/5 vehicles, or as a stand‑alone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher due to coating and complex design\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eThe key structural difference is that the SDPF\/SCRF has \u003cstrong\u003ehigher porosity\u003c\/strong\u003e to accommodate the SCR washcoat without excessively increasing backpressure.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – SDPF的示例图（根据图片用文字描述） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Example performance diagram of SDPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe following diagram illustrates the NO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency of a close‑coupled SCRF system compared to an under‑floor SCR system, based on real test data.\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eSystem\u003c\/th\u003e\n            \u003cth\u003eTemperature range\u003c\/th\u003e\n            \u003cth\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency\u003c\/th\u003e\n            \u003cth\u003eKey remarks\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\n\u003cstrong\u003ecc‑SCRF\u003c\/strong\u003e (close‑coupled)\u003c\/td\u003e\n            \u003ctd\u003e200 – 400°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% at 250°C, exceeds 90% above 300°C\u003c\/td\u003e\n            \u003ctd\u003eFast light‑off, active during cold start and warm‑up\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUnder‑floor main SCR\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e300 – 600°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% only above 400°C\u003c\/td\u003e\n            \u003ctd\u003eHigher catalyst loading, but slower light‑off\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eAuxiliary small SCR (with ASC)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e200 – 450°C\u003c\/td\u003e\n            \u003ctd\u003eProvides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion and ammonia slip control\u003c\/td\u003e\n            \u003ctd\u003eOften used in heavy‑duty vehicles\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eDiagram interpretation:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe cc‑SCRF (solid curve) achieves high NO\u003csub\u003ex\u003c\/sub\u003e conversion (\u0026gt;80%) already at ~250°C, while the under‑floor SCR (dashed curve) reaches the same level only above 400°C.\u003c\/li\u003e\n        \u003cli\u003eTwo urea injection points are shown: one upstream of the cc‑SCRF and a second upstream of the under‑floor SCR (for heavy‑duty applications).\u003c\/li\u003e\n        \u003cli\u003eA small auxiliary SCR is placed downstream to handle residual NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors before and after the system enable precise urea dosing and performance monitoring.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis configuration ensures optimal NO\u003csub\u003ex\u003c\/sub\u003e reduction across the entire operating range, especially during transient conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – SDPF\/SCRF 涂PT和不涂PT之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between Pt‑coated and uncoated SDPF\/SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe coating of platinum (Pt) on the SDPF\/SCRF significantly affects performance, especially at low temperatures. Here is a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003ePt‑coated SDPF\/SCRF\u003c\/th\u003e\n            \u003cth\u003eUncoated SDPF\/SCRF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO oxidation\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnables NO → NO\u003csub\u003e2\u003c\/sub\u003e conversion, improving low‑temperature SCR performance\u003c\/td\u003e\n            \u003ctd\u003eLimited NO oxidation; relies mainly on engine‑out NO\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eLow‑temperature activity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher activity below 250°C due to faster NH\u003csub\u003e3\u003c\/sub\u003e activation and NO\u003csub\u003e2\u003c\/sub\u003e promotion\u003c\/td\u003e\n            \u003ctd\u003eLower activity; needs higher temperature for effective SCR\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea decomposition\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSlightly improved due to local heat release from oxidation reactions\u003c\/td\u003e\n            \u003ctd\u003eNo such benefit\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePassive regeneration\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnhanced soot oxidation (due to NO\u003csub\u003e2\u003c\/sub\u003e) – lowers regeneration temperature\u003c\/td\u003e\n            \u003ctd\u003eHigher soot oxidation temperature, more active regeneration needed\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePt may suffer from sulfur poisoning and thermal ageing\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no precious metal degradation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSignificantly more expensive\u003c\/td\u003e\n            \u003ctd\u003eLower cost\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6d, cold‑start heavy‑duty, and vehicles with frequent low‑load operation\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 without extreme cold‑start demands\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn summary, Pt coating greatly improves cold‑start NO\u003csub\u003ex\u003c\/sub\u003e reduction and passive regeneration, but adds cost and complexity. The choice depends on emission targets and operating conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 我们的SDPF\/SCRF使用的是什么SCR基材 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e Which SCR substrate material do we use?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur SDPF\/SCRF products use a \u003cstrong\u003ecopper‑based zeolite (Cu‑zeolite)\u003c\/strong\u003e as the SCR catalyst material.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey advantages of Cu‑zeolite SCR:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExcellent low‑temperature activity:\u003c\/strong\u003e Effective even below 200°C, ideal for cold‑start and low‑load conditions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh hydrothermal durability:\u003c\/strong\u003e Withstands temperatures up to 650°C without significant degradation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGood resistance to sulfur poisoning\u003c\/strong\u003e compared to iron‑based zeolites.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBroad operating window:\u003c\/strong\u003e Maintains high NO\u003csub\u003ex\u003c\/sub\u003e conversion from 200°C to 500°C.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLower precious metal content\u003c\/strong\u003e than vanadium‑based systems, reducing cost.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis Cu‑zeolite coating is applied to the cordierite or silicon carbide DPF substrate (depending on the model) to provide both particulate filtration and SCR functionality in a single unit.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – SDPF\/SCRF的主要功能和工作原理是什么？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e Main functions and working principle of SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eMain functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eParticulate filtration:\u003c\/strong\u003e Traps soot and ash particles from diesel exhaust, reducing PM emissions by \u0026gt; 90%.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e reduction:\u003c\/strong\u003e Converts nitrogen oxides (NO and NO₂) into harmless nitrogen (N₂) and water (H₂O) via selective catalytic reduction.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePassive soot oxidation:\u003c\/strong\u003e Generates NO₂ from NO (with Pt coating) to oxidise trapped soot at lower temperatures, reducing regeneration frequency.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eWorking principle (step‑by‑step):\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExhaust gas enters the SCRF\u003c\/strong\u003e – containing NO, NO₂, soot, and other gaseous pollutants.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUrea injection\u003c\/strong\u003e – AdBlue (urea‑water solution) is sprayed upstream; it decomposes into NH\u003csub\u003e3\u003c\/sub\u003e and CO₂.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNH\u003csub\u003e3\u003c\/sub\u003e mixes with exhaust\u003c\/strong\u003e and flows into the SCRF channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration\u003c\/strong\u003e – The wall‑flow structure forces the gas through the porous walls, trapping soot on the inlet channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSCR reaction\u003c\/strong\u003e – NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the Cu‑zeolite catalyst layer on the filter walls, producing N₂ and H₂O.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration\u003c\/strong\u003e – Accumulated soot is periodically burned off via passive oxidation (using NO₂) or active regeneration (raising exhaust temperature to ~600°C).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eClean gas exits\u003c\/strong\u003e – with significantly reduced particulate and NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/li\u003e\n      \u003c\/ol\u003e\n      \u003cp\u003eThis integrated design saves space, reduces system complexity, and improves overall emission control efficiency compared to separate DPF + SCR units.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 堇青石材质和碳化硅的区别？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Difference between cordierite and silicon carbide materials?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are used as DPF\/SCRF substrates. Their differences are summarized below:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide (SiC)\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal expansion coefficient\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eVery low (~1.5×10⁻⁶\/℃)\u003c\/td\u003e\n            \u003ctd\u003eHigher (~4.0×10⁻⁶\/℃)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal shock resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited above 1000°C\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands high thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaximum operating temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1200°C\u003c\/td\u003e\n            \u003ctd\u003e~1600°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50% (can be tailored)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHeavier\u003c\/td\u003e\n            \u003ctd\u003eLighter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn general, cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions, especially where frequent regeneration is required.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – SDPF\/SCRF最小起订量 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e Minimum order quantity (MOQ) for SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur minimum order quantities vary by material type:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSilicon Carbide (SiC) material:\u003c\/strong\u003e \u003cstrong\u003e3 pieces\u003c\/strong\u003e (3pcs)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCordierite material:\u003c\/strong\u003e \u003cstrong\u003e10 pieces\u003c\/strong\u003e (10pcs)\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThese MOQs are set to ensure efficient production and coating processes. For larger volumes, we offer competitive pricing and shorter lead times. If you require a specific quantity below these MOQs, please contact our sales team to discuss possibilities.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 公司总部地址 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 如何联系我们 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"Cordierite \/ SCR Coating \/ 158x140mm","offer_id":54463874957658,"sku":null,"price":70.63,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 158x140mm","offer_id":54463874990426,"sku":null,"price":121.78,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 158x140mm","offer_id":54463875023194,"sku":null,"price":104.73,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 158x140mm","offer_id":54463875055962,"sku":null,"price":155.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/33_0409e9ad-d8dd-42db-aed8-a446c64b4f4c.jpg?v=1784792352"},{"product_id":"dpf-scrf-sic-ceramic-diesel-particulate-filter-152mm-5-98","title":"DPF\/SCRF SiC Ceramic Diesel Particulate Filter 152mm (5.98\")","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是SDPF\/SCRF --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is SDPF \/ SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eSDPF\u003c\/strong\u003e (Selective Catalytic Reduction Filter) or \u003cstrong\u003eSCRF\u003c\/strong\u003e (SCR on Filter) is an integrated after‑treatment device that combines a DPF (Diesel Particulate Filter) with an SCR (Selective Catalytic Reduction) catalyst coating on the same substrate. This configuration simultaneously removes particulate matter (soot) and reduces NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eStructure and operating principle:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe SCRF is positioned close to the engine outlet (tight‑coupled) to reach urea decomposition temperature and SCR light‑off temperature quickly, avoiding excessive NO\u003csub\u003ex\u003c\/sub\u003e emissions during cold starts.\u003c\/li\u003e\n        \u003cli\u003eUrea is injected upstream of the SCRF; the generated NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the SCR catalyst layer, while the filter walls trap soot.\u003c\/li\u003e\n        \u003cli\u003eAt low temperatures (below 200°C), urea decomposition is incomplete and NO\u003csub\u003e2\u003c\/sub\u003e conversion is limited. The tight‑coupled SCRF overcomes this by achieving faster warm‑up.\u003c\/li\u003e\n        \u003cli\u003eA downstream under‑floor SCR catalyst (with higher catalyst loading) provides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion during normal driving. Some heavy‑duty systems also include a small auxiliary SCR with an ASC (Ammonia Slip Catalyst) to control excess NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors upstream of the DOC and downstream of the SCRF are used to control urea dosing and monitor SCRF performance.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis layout (DOC + SCRF close‑coupled + under‑floor SCR) is typical for modern Euro 6 heavy‑duty diesel engines.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – SDPF和DPF之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between SDPF (SCRF) and DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eAlthough both are wall‑flow ceramic filters, SDPF (SCRF) and DPF differ significantly in design and function:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eFeature\u003c\/th\u003e\n            \u003cth\u003eSDPF \/ SCRF\u003c\/th\u003e\n            \u003cth\u003eDPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePrimary function\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSimultaneous particulate filtration and NO\u003csub\u003ex\u003c\/sub\u003e reduction (SCR)\u003c\/td\u003e\n            \u003ctd\u003eOnly particulate filtration\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains SCR catalyst (e.g., Cu‑zeolite) with precious metals\u003c\/td\u003e\n            \u003ctd\u003eTypically uncoated or only catalysed for soot oxidation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher porosity (typically \u0026gt; 50%) to allow SCR coating penetration and to maintain low backpressure\u003c\/td\u003e\n            \u003ctd\u003eLower porosity (typically 40‑50%)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea injection\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eRequires urea dosing upstream\u003c\/td\u003e\n            \u003ctd\u003eNo urea required\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eConverts NO\u003csub\u003ex\u003c\/sub\u003e to N\u003csub\u003e2\u003c\/sub\u003e using NH\u003csub\u003e3\u003c\/sub\u003e\n\u003c\/td\u003e\n            \u003ctd\u003eDoes not reduce NO\u003csub\u003ex\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6 heavy‑duty and light‑duty diesel vehicles\u003c\/td\u003e\n            \u003ctd\u003eEuro 4\/5 vehicles, or as a stand‑alone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher due to coating and complex design\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eThe key structural difference is that the SDPF\/SCRF has \u003cstrong\u003ehigher porosity\u003c\/strong\u003e to accommodate the SCR washcoat without excessively increasing backpressure.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – SDPF的示例图（根据图片用文字描述） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Example performance diagram of SDPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe following diagram illustrates the NO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency of a close‑coupled SCRF system compared to an under‑floor SCR system, based on real test data.\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eSystem\u003c\/th\u003e\n            \u003cth\u003eTemperature range\u003c\/th\u003e\n            \u003cth\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency\u003c\/th\u003e\n            \u003cth\u003eKey remarks\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\n\u003cstrong\u003ecc‑SCRF\u003c\/strong\u003e (close‑coupled)\u003c\/td\u003e\n            \u003ctd\u003e200 – 400°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% at 250°C, exceeds 90% above 300°C\u003c\/td\u003e\n            \u003ctd\u003eFast light‑off, active during cold start and warm‑up\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUnder‑floor main SCR\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e300 – 600°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% only above 400°C\u003c\/td\u003e\n            \u003ctd\u003eHigher catalyst loading, but slower light‑off\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eAuxiliary small SCR (with ASC)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e200 – 450°C\u003c\/td\u003e\n            \u003ctd\u003eProvides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion and ammonia slip control\u003c\/td\u003e\n            \u003ctd\u003eOften used in heavy‑duty vehicles\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eDiagram interpretation:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe cc‑SCRF (solid curve) achieves high NO\u003csub\u003ex\u003c\/sub\u003e conversion (\u0026gt;80%) already at ~250°C, while the under‑floor SCR (dashed curve) reaches the same level only above 400°C.\u003c\/li\u003e\n        \u003cli\u003eTwo urea injection points are shown: one upstream of the cc‑SCRF and a second upstream of the under‑floor SCR (for heavy‑duty applications).\u003c\/li\u003e\n        \u003cli\u003eA small auxiliary SCR is placed downstream to handle residual NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors before and after the system enable precise urea dosing and performance monitoring.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis configuration ensures optimal NO\u003csub\u003ex\u003c\/sub\u003e reduction across the entire operating range, especially during transient conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – SDPF\/SCRF 涂PT和不涂PT之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between Pt‑coated and uncoated SDPF\/SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe coating of platinum (Pt) on the SDPF\/SCRF significantly affects performance, especially at low temperatures. Here is a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003ePt‑coated SDPF\/SCRF\u003c\/th\u003e\n            \u003cth\u003eUncoated SDPF\/SCRF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO oxidation\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnables NO → NO\u003csub\u003e2\u003c\/sub\u003e conversion, improving low‑temperature SCR performance\u003c\/td\u003e\n            \u003ctd\u003eLimited NO oxidation; relies mainly on engine‑out NO\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eLow‑temperature activity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher activity below 250°C due to faster NH\u003csub\u003e3\u003c\/sub\u003e activation and NO\u003csub\u003e2\u003c\/sub\u003e promotion\u003c\/td\u003e\n            \u003ctd\u003eLower activity; needs higher temperature for effective SCR\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea decomposition\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSlightly improved due to local heat release from oxidation reactions\u003c\/td\u003e\n            \u003ctd\u003eNo such benefit\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePassive regeneration\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnhanced soot oxidation (due to NO\u003csub\u003e2\u003c\/sub\u003e) – lowers regeneration temperature\u003c\/td\u003e\n            \u003ctd\u003eHigher soot oxidation temperature, more active regeneration needed\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePt may suffer from sulfur poisoning and thermal ageing\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no precious metal degradation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSignificantly more expensive\u003c\/td\u003e\n            \u003ctd\u003eLower cost\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6d, cold‑start heavy‑duty, and vehicles with frequent low‑load operation\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 without extreme cold‑start demands\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn summary, Pt coating greatly improves cold‑start NO\u003csub\u003ex\u003c\/sub\u003e reduction and passive regeneration, but adds cost and complexity. The choice depends on emission targets and operating conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 我们的SDPF\/SCRF使用的是什么SCR基材 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e Which SCR substrate material do we use?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur SDPF\/SCRF products use a \u003cstrong\u003ecopper‑based zeolite (Cu‑zeolite)\u003c\/strong\u003e as the SCR catalyst material.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey advantages of Cu‑zeolite SCR:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExcellent low‑temperature activity:\u003c\/strong\u003e Effective even below 200°C, ideal for cold‑start and low‑load conditions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh hydrothermal durability:\u003c\/strong\u003e Withstands temperatures up to 650°C without significant degradation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGood resistance to sulfur poisoning\u003c\/strong\u003e compared to iron‑based zeolites.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBroad operating window:\u003c\/strong\u003e Maintains high NO\u003csub\u003ex\u003c\/sub\u003e conversion from 200°C to 500°C.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLower precious metal content\u003c\/strong\u003e than vanadium‑based systems, reducing cost.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis Cu‑zeolite coating is applied to the cordierite or silicon carbide DPF substrate (depending on the model) to provide both particulate filtration and SCR functionality in a single unit.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – SDPF\/SCRF的主要功能和工作原理是什么？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e Main functions and working principle of SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eMain functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eParticulate filtration:\u003c\/strong\u003e Traps soot and ash particles from diesel exhaust, reducing PM emissions by \u0026gt; 90%.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e reduction:\u003c\/strong\u003e Converts nitrogen oxides (NO and NO₂) into harmless nitrogen (N₂) and water (H₂O) via selective catalytic reduction.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePassive soot oxidation:\u003c\/strong\u003e Generates NO₂ from NO (with Pt coating) to oxidise trapped soot at lower temperatures, reducing regeneration frequency.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eWorking principle (step‑by‑step):\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExhaust gas enters the SCRF\u003c\/strong\u003e – containing NO, NO₂, soot, and other gaseous pollutants.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUrea injection\u003c\/strong\u003e – AdBlue (urea‑water solution) is sprayed upstream; it decomposes into NH\u003csub\u003e3\u003c\/sub\u003e and CO₂.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNH\u003csub\u003e3\u003c\/sub\u003e mixes with exhaust\u003c\/strong\u003e and flows into the SCRF channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration\u003c\/strong\u003e – The wall‑flow structure forces the gas through the porous walls, trapping soot on the inlet channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSCR reaction\u003c\/strong\u003e – NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the Cu‑zeolite catalyst layer on the filter walls, producing N₂ and H₂O.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration\u003c\/strong\u003e – Accumulated soot is periodically burned off via passive oxidation (using NO₂) or active regeneration (raising exhaust temperature to ~600°C).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eClean gas exits\u003c\/strong\u003e – with significantly reduced particulate and NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/li\u003e\n      \u003c\/ol\u003e\n      \u003cp\u003eThis integrated design saves space, reduces system complexity, and improves overall emission control efficiency compared to separate DPF + SCR units.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 堇青石材质和碳化硅的区别？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Difference between cordierite and silicon carbide materials?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are used as DPF\/SCRF substrates. Their differences are summarized below:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide (SiC)\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal expansion coefficient\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eVery low (~1.5×10⁻⁶\/℃)\u003c\/td\u003e\n            \u003ctd\u003eHigher (~4.0×10⁻⁶\/℃)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal shock resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited above 1000°C\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands high thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaximum operating temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1200°C\u003c\/td\u003e\n            \u003ctd\u003e~1600°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50% (can be tailored)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHeavier\u003c\/td\u003e\n            \u003ctd\u003eLighter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn general, cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions, especially where frequent regeneration is required.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – SDPF\/SCRF最小起订量 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e Minimum order quantity (MOQ) for SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur minimum order quantities vary by material type:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSilicon Carbide (SiC) material:\u003c\/strong\u003e \u003cstrong\u003e3 pieces\u003c\/strong\u003e (3pcs)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCordierite material:\u003c\/strong\u003e \u003cstrong\u003e10 pieces\u003c\/strong\u003e (10pcs)\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThese MOQs are set to ensure efficient production and coating processes. For larger volumes, we offer competitive pricing and shorter lead times. If you require a specific quantity below these MOQs, please contact our sales team to discuss possibilities.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 公司总部地址 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 如何联系我们 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"Cordierite \/ SCR Coating \/ 152x152mm","offer_id":54463928271194,"sku":null,"price":71.15,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 152x152mm","offer_id":54463928303962,"sku":null,"price":122.67,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 152x152mm","offer_id":54463928336730,"sku":null,"price":105.49,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 152x152mm","offer_id":54463928369498,"sku":null,"price":157.01,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/11_bd602575-c352-42de-ab2d-a029fc0c11d3.jpg?v=1784793130"},{"product_id":"dpf-scrf-sic-ceramic-diesel-particulate-filter-160mm-6-3","title":"DPF\/SCRF SiC Ceramic Diesel Particulate Filter 160mm (6.3\")","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是SDPF\/SCRF --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is SDPF \/ SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eSDPF\u003c\/strong\u003e (Selective Catalytic Reduction Filter) or \u003cstrong\u003eSCRF\u003c\/strong\u003e (SCR on Filter) is an integrated after‑treatment device that combines a DPF (Diesel Particulate Filter) with an SCR (Selective Catalytic Reduction) catalyst coating on the same substrate. This configuration simultaneously removes particulate matter (soot) and reduces NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eStructure and operating principle:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe SCRF is positioned close to the engine outlet (tight‑coupled) to reach urea decomposition temperature and SCR light‑off temperature quickly, avoiding excessive NO\u003csub\u003ex\u003c\/sub\u003e emissions during cold starts.\u003c\/li\u003e\n        \u003cli\u003eUrea is injected upstream of the SCRF; the generated NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the SCR catalyst layer, while the filter walls trap soot.\u003c\/li\u003e\n        \u003cli\u003eAt low temperatures (below 200°C), urea decomposition is incomplete and NO\u003csub\u003e2\u003c\/sub\u003e conversion is limited. The tight‑coupled SCRF overcomes this by achieving faster warm‑up.\u003c\/li\u003e\n        \u003cli\u003eA downstream under‑floor SCR catalyst (with higher catalyst loading) provides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion during normal driving. Some heavy‑duty systems also include a small auxiliary SCR with an ASC (Ammonia Slip Catalyst) to control excess NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors upstream of the DOC and downstream of the SCRF are used to control urea dosing and monitor SCRF performance.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis layout (DOC + SCRF close‑coupled + under‑floor SCR) is typical for modern Euro 6 heavy‑duty diesel engines.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – SDPF和DPF之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between SDPF (SCRF) and DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eAlthough both are wall‑flow ceramic filters, SDPF (SCRF) and DPF differ significantly in design and function:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eFeature\u003c\/th\u003e\n            \u003cth\u003eSDPF \/ SCRF\u003c\/th\u003e\n            \u003cth\u003eDPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePrimary function\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSimultaneous particulate filtration and NO\u003csub\u003ex\u003c\/sub\u003e reduction (SCR)\u003c\/td\u003e\n            \u003ctd\u003eOnly particulate filtration\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains SCR catalyst (e.g., Cu‑zeolite) with precious metals\u003c\/td\u003e\n            \u003ctd\u003eTypically uncoated or only catalysed for soot oxidation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher porosity (typically \u0026gt; 50%) to allow SCR coating penetration and to maintain low backpressure\u003c\/td\u003e\n            \u003ctd\u003eLower porosity (typically 40‑50%)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea injection\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eRequires urea dosing upstream\u003c\/td\u003e\n            \u003ctd\u003eNo urea required\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eConverts NO\u003csub\u003ex\u003c\/sub\u003e to N\u003csub\u003e2\u003c\/sub\u003e using NH\u003csub\u003e3\u003c\/sub\u003e\n\u003c\/td\u003e\n            \u003ctd\u003eDoes not reduce NO\u003csub\u003ex\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6 heavy‑duty and light‑duty diesel vehicles\u003c\/td\u003e\n            \u003ctd\u003eEuro 4\/5 vehicles, or as a stand‑alone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher due to coating and complex design\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eThe key structural difference is that the SDPF\/SCRF has \u003cstrong\u003ehigher porosity\u003c\/strong\u003e to accommodate the SCR washcoat without excessively increasing backpressure.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – SDPF的示例图（根据图片用文字描述） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Example performance diagram of SDPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe following diagram illustrates the NO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency of a close‑coupled SCRF system compared to an under‑floor SCR system, based on real test data.\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eSystem\u003c\/th\u003e\n            \u003cth\u003eTemperature range\u003c\/th\u003e\n            \u003cth\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency\u003c\/th\u003e\n            \u003cth\u003eKey remarks\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\n\u003cstrong\u003ecc‑SCRF\u003c\/strong\u003e (close‑coupled)\u003c\/td\u003e\n            \u003ctd\u003e200 – 400°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% at 250°C, exceeds 90% above 300°C\u003c\/td\u003e\n            \u003ctd\u003eFast light‑off, active during cold start and warm‑up\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUnder‑floor main SCR\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e300 – 600°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% only above 400°C\u003c\/td\u003e\n            \u003ctd\u003eHigher catalyst loading, but slower light‑off\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eAuxiliary small SCR (with ASC)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e200 – 450°C\u003c\/td\u003e\n            \u003ctd\u003eProvides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion and ammonia slip control\u003c\/td\u003e\n            \u003ctd\u003eOften used in heavy‑duty vehicles\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eDiagram interpretation:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe cc‑SCRF (solid curve) achieves high NO\u003csub\u003ex\u003c\/sub\u003e conversion (\u0026gt;80%) already at ~250°C, while the under‑floor SCR (dashed curve) reaches the same level only above 400°C.\u003c\/li\u003e\n        \u003cli\u003eTwo urea injection points are shown: one upstream of the cc‑SCRF and a second upstream of the under‑floor SCR (for heavy‑duty applications).\u003c\/li\u003e\n        \u003cli\u003eA small auxiliary SCR is placed downstream to handle residual NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors before and after the system enable precise urea dosing and performance monitoring.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis configuration ensures optimal NO\u003csub\u003ex\u003c\/sub\u003e reduction across the entire operating range, especially during transient conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – SDPF\/SCRF 涂PT和不涂PT之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between Pt‑coated and uncoated SDPF\/SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe coating of platinum (Pt) on the SDPF\/SCRF significantly affects performance, especially at low temperatures. Here is a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003ePt‑coated SDPF\/SCRF\u003c\/th\u003e\n            \u003cth\u003eUncoated SDPF\/SCRF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO oxidation\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnables NO → NO\u003csub\u003e2\u003c\/sub\u003e conversion, improving low‑temperature SCR performance\u003c\/td\u003e\n            \u003ctd\u003eLimited NO oxidation; relies mainly on engine‑out NO\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eLow‑temperature activity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher activity below 250°C due to faster NH\u003csub\u003e3\u003c\/sub\u003e activation and NO\u003csub\u003e2\u003c\/sub\u003e promotion\u003c\/td\u003e\n            \u003ctd\u003eLower activity; needs higher temperature for effective SCR\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea decomposition\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSlightly improved due to local heat release from oxidation reactions\u003c\/td\u003e\n            \u003ctd\u003eNo such benefit\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePassive regeneration\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnhanced soot oxidation (due to NO\u003csub\u003e2\u003c\/sub\u003e) – lowers regeneration temperature\u003c\/td\u003e\n            \u003ctd\u003eHigher soot oxidation temperature, more active regeneration needed\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePt may suffer from sulfur poisoning and thermal ageing\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no precious metal degradation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSignificantly more expensive\u003c\/td\u003e\n            \u003ctd\u003eLower cost\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6d, cold‑start heavy‑duty, and vehicles with frequent low‑load operation\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 without extreme cold‑start demands\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn summary, Pt coating greatly improves cold‑start NO\u003csub\u003ex\u003c\/sub\u003e reduction and passive regeneration, but adds cost and complexity. The choice depends on emission targets and operating conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 我们的SDPF\/SCRF使用的是什么SCR基材 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e Which SCR substrate material do we use?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur SDPF\/SCRF products use a \u003cstrong\u003ecopper‑based zeolite (Cu‑zeolite)\u003c\/strong\u003e as the SCR catalyst material.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey advantages of Cu‑zeolite SCR:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExcellent low‑temperature activity:\u003c\/strong\u003e Effective even below 200°C, ideal for cold‑start and low‑load conditions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh hydrothermal durability:\u003c\/strong\u003e Withstands temperatures up to 650°C without significant degradation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGood resistance to sulfur poisoning\u003c\/strong\u003e compared to iron‑based zeolites.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBroad operating window:\u003c\/strong\u003e Maintains high NO\u003csub\u003ex\u003c\/sub\u003e conversion from 200°C to 500°C.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLower precious metal content\u003c\/strong\u003e than vanadium‑based systems, reducing cost.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis Cu‑zeolite coating is applied to the cordierite or silicon carbide DPF substrate (depending on the model) to provide both particulate filtration and SCR functionality in a single unit.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – SDPF\/SCRF的主要功能和工作原理是什么？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e Main functions and working principle of SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eMain functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eParticulate filtration:\u003c\/strong\u003e Traps soot and ash particles from diesel exhaust, reducing PM emissions by \u0026gt; 90%.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e reduction:\u003c\/strong\u003e Converts nitrogen oxides (NO and NO₂) into harmless nitrogen (N₂) and water (H₂O) via selective catalytic reduction.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePassive soot oxidation:\u003c\/strong\u003e Generates NO₂ from NO (with Pt coating) to oxidise trapped soot at lower temperatures, reducing regeneration frequency.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eWorking principle (step‑by‑step):\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExhaust gas enters the SCRF\u003c\/strong\u003e – containing NO, NO₂, soot, and other gaseous pollutants.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUrea injection\u003c\/strong\u003e – AdBlue (urea‑water solution) is sprayed upstream; it decomposes into NH\u003csub\u003e3\u003c\/sub\u003e and CO₂.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNH\u003csub\u003e3\u003c\/sub\u003e mixes with exhaust\u003c\/strong\u003e and flows into the SCRF channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration\u003c\/strong\u003e – The wall‑flow structure forces the gas through the porous walls, trapping soot on the inlet channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSCR reaction\u003c\/strong\u003e – NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the Cu‑zeolite catalyst layer on the filter walls, producing N₂ and H₂O.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration\u003c\/strong\u003e – Accumulated soot is periodically burned off via passive oxidation (using NO₂) or active regeneration (raising exhaust temperature to ~600°C).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eClean gas exits\u003c\/strong\u003e – with significantly reduced particulate and NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/li\u003e\n      \u003c\/ol\u003e\n      \u003cp\u003eThis integrated design saves space, reduces system complexity, and improves overall emission control efficiency compared to separate DPF + SCR units.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 堇青石材质和碳化硅的区别？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Difference between cordierite and silicon carbide materials?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are used as DPF\/SCRF substrates. Their differences are summarized below:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide (SiC)\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal expansion coefficient\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eVery low (~1.5×10⁻⁶\/℃)\u003c\/td\u003e\n            \u003ctd\u003eHigher (~4.0×10⁻⁶\/℃)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal shock resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited above 1000°C\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands high thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaximum operating temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1200°C\u003c\/td\u003e\n            \u003ctd\u003e~1600°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50% (can be tailored)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHeavier\u003c\/td\u003e\n            \u003ctd\u003eLighter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn general, cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions, especially where frequent regeneration is required.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – SDPF\/SCRF最小起订量 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e Minimum order quantity (MOQ) for SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur minimum order quantities vary by material type:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSilicon Carbide (SiC) material:\u003c\/strong\u003e \u003cstrong\u003e3 pieces\u003c\/strong\u003e (3pcs)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCordierite material:\u003c\/strong\u003e \u003cstrong\u003e10 pieces\u003c\/strong\u003e (10pcs)\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThese MOQs are set to ensure efficient production and coating processes. For larger volumes, we offer competitive pricing and shorter lead times. If you require a specific quantity below these MOQs, please contact our sales team to discuss possibilities.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 公司总部地址 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 如何联系我们 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"Cordierite \/ SCR Coating \/ 160x152mm","offer_id":54463956779354,"sku":null,"price":78.62,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 160x152mm","offer_id":54463956812122,"sku":null,"price":135.56,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 160x152mm","offer_id":54463956844890,"sku":null,"price":116.58,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 160x152mm","offer_id":54463956877658,"sku":null,"price":173.51,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/33_03311966-4865-45cc-a52f-d7bbaad40534.jpg?v=1784794700"},{"product_id":"dpf-scrf-sic-ceramic-diesel-particulate-filter-165mm-6-5","title":"DPF\/SCRF SiC Ceramic Diesel Particulate Filter 165mm (6.5\")","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是SDPF\/SCRF --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is SDPF \/ SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eSDPF\u003c\/strong\u003e (Selective Catalytic Reduction Filter) or \u003cstrong\u003eSCRF\u003c\/strong\u003e (SCR on Filter) is an integrated after‑treatment device that combines a DPF (Diesel Particulate Filter) with an SCR (Selective Catalytic Reduction) catalyst coating on the same substrate. This configuration simultaneously removes particulate matter (soot) and reduces NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eStructure and operating principle:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe SCRF is positioned close to the engine outlet (tight‑coupled) to reach urea decomposition temperature and SCR light‑off temperature quickly, avoiding excessive NO\u003csub\u003ex\u003c\/sub\u003e emissions during cold starts.\u003c\/li\u003e\n        \u003cli\u003eUrea is injected upstream of the SCRF; the generated NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the SCR catalyst layer, while the filter walls trap soot.\u003c\/li\u003e\n        \u003cli\u003eAt low temperatures (below 200°C), urea decomposition is incomplete and NO\u003csub\u003e2\u003c\/sub\u003e conversion is limited. The tight‑coupled SCRF overcomes this by achieving faster warm‑up.\u003c\/li\u003e\n        \u003cli\u003eA downstream under‑floor SCR catalyst (with higher catalyst loading) provides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion during normal driving. Some heavy‑duty systems also include a small auxiliary SCR with an ASC (Ammonia Slip Catalyst) to control excess NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors upstream of the DOC and downstream of the SCRF are used to control urea dosing and monitor SCRF performance.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis layout (DOC + SCRF close‑coupled + under‑floor SCR) is typical for modern Euro 6 heavy‑duty diesel engines.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – SDPF和DPF之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between SDPF (SCRF) and DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eAlthough both are wall‑flow ceramic filters, SDPF (SCRF) and DPF differ significantly in design and function:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eFeature\u003c\/th\u003e\n            \u003cth\u003eSDPF \/ SCRF\u003c\/th\u003e\n            \u003cth\u003eDPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePrimary function\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSimultaneous particulate filtration and NO\u003csub\u003ex\u003c\/sub\u003e reduction (SCR)\u003c\/td\u003e\n            \u003ctd\u003eOnly particulate filtration\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains SCR catalyst (e.g., Cu‑zeolite) with precious metals\u003c\/td\u003e\n            \u003ctd\u003eTypically uncoated or only catalysed for soot oxidation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher porosity (typically \u0026gt; 50%) to allow SCR coating penetration and to maintain low backpressure\u003c\/td\u003e\n            \u003ctd\u003eLower porosity (typically 40‑50%)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea injection\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eRequires urea dosing upstream\u003c\/td\u003e\n            \u003ctd\u003eNo urea required\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eConverts NO\u003csub\u003ex\u003c\/sub\u003e to N\u003csub\u003e2\u003c\/sub\u003e using NH\u003csub\u003e3\u003c\/sub\u003e\n\u003c\/td\u003e\n            \u003ctd\u003eDoes not reduce NO\u003csub\u003ex\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6 heavy‑duty and light‑duty diesel vehicles\u003c\/td\u003e\n            \u003ctd\u003eEuro 4\/5 vehicles, or as a stand‑alone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher due to coating and complex design\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eThe key structural difference is that the SDPF\/SCRF has \u003cstrong\u003ehigher porosity\u003c\/strong\u003e to accommodate the SCR washcoat without excessively increasing backpressure.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – SDPF的示例图（根据图片用文字描述） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Example performance diagram of SDPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe following diagram illustrates the NO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency of a close‑coupled SCRF system compared to an under‑floor SCR system, based on real test data.\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eSystem\u003c\/th\u003e\n            \u003cth\u003eTemperature range\u003c\/th\u003e\n            \u003cth\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency\u003c\/th\u003e\n            \u003cth\u003eKey remarks\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\n\u003cstrong\u003ecc‑SCRF\u003c\/strong\u003e (close‑coupled)\u003c\/td\u003e\n            \u003ctd\u003e200 – 400°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% at 250°C, exceeds 90% above 300°C\u003c\/td\u003e\n            \u003ctd\u003eFast light‑off, active during cold start and warm‑up\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUnder‑floor main SCR\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e300 – 600°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% only above 400°C\u003c\/td\u003e\n            \u003ctd\u003eHigher catalyst loading, but slower light‑off\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eAuxiliary small SCR (with ASC)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e200 – 450°C\u003c\/td\u003e\n            \u003ctd\u003eProvides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion and ammonia slip control\u003c\/td\u003e\n            \u003ctd\u003eOften used in heavy‑duty vehicles\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eDiagram interpretation:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe cc‑SCRF (solid curve) achieves high NO\u003csub\u003ex\u003c\/sub\u003e conversion (\u0026gt;80%) already at ~250°C, while the under‑floor SCR (dashed curve) reaches the same level only above 400°C.\u003c\/li\u003e\n        \u003cli\u003eTwo urea injection points are shown: one upstream of the cc‑SCRF and a second upstream of the under‑floor SCR (for heavy‑duty applications).\u003c\/li\u003e\n        \u003cli\u003eA small auxiliary SCR is placed downstream to handle residual NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors before and after the system enable precise urea dosing and performance monitoring.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis configuration ensures optimal NO\u003csub\u003ex\u003c\/sub\u003e reduction across the entire operating range, especially during transient conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – SDPF\/SCRF 涂PT和不涂PT之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between Pt‑coated and uncoated SDPF\/SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe coating of platinum (Pt) on the SDPF\/SCRF significantly affects performance, especially at low temperatures. Here is a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003ePt‑coated SDPF\/SCRF\u003c\/th\u003e\n            \u003cth\u003eUncoated SDPF\/SCRF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO oxidation\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnables NO → NO\u003csub\u003e2\u003c\/sub\u003e conversion, improving low‑temperature SCR performance\u003c\/td\u003e\n            \u003ctd\u003eLimited NO oxidation; relies mainly on engine‑out NO\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eLow‑temperature activity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher activity below 250°C due to faster NH\u003csub\u003e3\u003c\/sub\u003e activation and NO\u003csub\u003e2\u003c\/sub\u003e promotion\u003c\/td\u003e\n            \u003ctd\u003eLower activity; needs higher temperature for effective SCR\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea decomposition\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSlightly improved due to local heat release from oxidation reactions\u003c\/td\u003e\n            \u003ctd\u003eNo such benefit\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePassive regeneration\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnhanced soot oxidation (due to NO\u003csub\u003e2\u003c\/sub\u003e) – lowers regeneration temperature\u003c\/td\u003e\n            \u003ctd\u003eHigher soot oxidation temperature, more active regeneration needed\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePt may suffer from sulfur poisoning and thermal ageing\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no precious metal degradation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSignificantly more expensive\u003c\/td\u003e\n            \u003ctd\u003eLower cost\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6d, cold‑start heavy‑duty, and vehicles with frequent low‑load operation\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 without extreme cold‑start demands\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn summary, Pt coating greatly improves cold‑start NO\u003csub\u003ex\u003c\/sub\u003e reduction and passive regeneration, but adds cost and complexity. The choice depends on emission targets and operating conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 我们的SDPF\/SCRF使用的是什么SCR基材 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e Which SCR substrate material do we use?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur SDPF\/SCRF products use a \u003cstrong\u003ecopper‑based zeolite (Cu‑zeolite)\u003c\/strong\u003e as the SCR catalyst material.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey advantages of Cu‑zeolite SCR:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExcellent low‑temperature activity:\u003c\/strong\u003e Effective even below 200°C, ideal for cold‑start and low‑load conditions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh hydrothermal durability:\u003c\/strong\u003e Withstands temperatures up to 650°C without significant degradation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGood resistance to sulfur poisoning\u003c\/strong\u003e compared to iron‑based zeolites.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBroad operating window:\u003c\/strong\u003e Maintains high NO\u003csub\u003ex\u003c\/sub\u003e conversion from 200°C to 500°C.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLower precious metal content\u003c\/strong\u003e than vanadium‑based systems, reducing cost.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis Cu‑zeolite coating is applied to the cordierite or silicon carbide DPF substrate (depending on the model) to provide both particulate filtration and SCR functionality in a single unit.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – SDPF\/SCRF的主要功能和工作原理是什么？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e Main functions and working principle of SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eMain functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eParticulate filtration:\u003c\/strong\u003e Traps soot and ash particles from diesel exhaust, reducing PM emissions by \u0026gt; 90%.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e reduction:\u003c\/strong\u003e Converts nitrogen oxides (NO and NO₂) into harmless nitrogen (N₂) and water (H₂O) via selective catalytic reduction.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePassive soot oxidation:\u003c\/strong\u003e Generates NO₂ from NO (with Pt coating) to oxidise trapped soot at lower temperatures, reducing regeneration frequency.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eWorking principle (step‑by‑step):\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExhaust gas enters the SCRF\u003c\/strong\u003e – containing NO, NO₂, soot, and other gaseous pollutants.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUrea injection\u003c\/strong\u003e – AdBlue (urea‑water solution) is sprayed upstream; it decomposes into NH\u003csub\u003e3\u003c\/sub\u003e and CO₂.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNH\u003csub\u003e3\u003c\/sub\u003e mixes with exhaust\u003c\/strong\u003e and flows into the SCRF channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration\u003c\/strong\u003e – The wall‑flow structure forces the gas through the porous walls, trapping soot on the inlet channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSCR reaction\u003c\/strong\u003e – NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the Cu‑zeolite catalyst layer on the filter walls, producing N₂ and H₂O.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration\u003c\/strong\u003e – Accumulated soot is periodically burned off via passive oxidation (using NO₂) or active regeneration (raising exhaust temperature to ~600°C).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eClean gas exits\u003c\/strong\u003e – with significantly reduced particulate and NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/li\u003e\n      \u003c\/ol\u003e\n      \u003cp\u003eThis integrated design saves space, reduces system complexity, and improves overall emission control efficiency compared to separate DPF + SCR units.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 堇青石材质和碳化硅的区别？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Difference between cordierite and silicon carbide materials?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are used as DPF\/SCRF substrates. Their differences are summarized below:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide (SiC)\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal expansion coefficient\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eVery low (~1.5×10⁻⁶\/℃)\u003c\/td\u003e\n            \u003ctd\u003eHigher (~4.0×10⁻⁶\/℃)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal shock resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited above 1000°C\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands high thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaximum operating temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1200°C\u003c\/td\u003e\n            \u003ctd\u003e~1600°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50% (can be tailored)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHeavier\u003c\/td\u003e\n            \u003ctd\u003eLighter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn general, cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions, especially where frequent regeneration is required.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – SDPF\/SCRF最小起订量 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e Minimum order quantity (MOQ) for SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur minimum order quantities vary by material type:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSilicon Carbide (SiC) material:\u003c\/strong\u003e \u003cstrong\u003e3 pieces\u003c\/strong\u003e (3pcs)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCordierite material:\u003c\/strong\u003e \u003cstrong\u003e10 pieces\u003c\/strong\u003e (10pcs)\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThese MOQs are set to ensure efficient production and coating processes. For larger volumes, we offer competitive pricing and shorter lead times. If you require a specific quantity below these MOQs, please contact our sales team to discuss possibilities.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 公司总部地址 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 如何联系我们 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"Cordierite \/ SCR Coating \/ 165x140mm","offer_id":54463981257050,"sku":null,"price":77.08,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 165x140mm","offer_id":54463981289818,"sku":null,"price":132.89,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 165x140mm","offer_id":54463981322586,"sku":null,"price":114.28,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 165x140mm","offer_id":54463981355354,"sku":null,"price":170.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/11_b41cca71-7983-4a67-99fb-554ecdd0d69b.jpg?v=1784795431"},{"product_id":"dpf-scrf-sic-ceramic-diesel-particulate-filter-172mm-6-77","title":"DPF\/SCRF SiC Ceramic Diesel Particulate Filter 172mm (6.77\")","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是SDPF\/SCRF --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is SDPF \/ SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eSDPF\u003c\/strong\u003e (Selective Catalytic Reduction Filter) or \u003cstrong\u003eSCRF\u003c\/strong\u003e (SCR on Filter) is an integrated after‑treatment device that combines a DPF (Diesel Particulate Filter) with an SCR (Selective Catalytic Reduction) catalyst coating on the same substrate. This configuration simultaneously removes particulate matter (soot) and reduces NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eStructure and operating principle:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe SCRF is positioned close to the engine outlet (tight‑coupled) to reach urea decomposition temperature and SCR light‑off temperature quickly, avoiding excessive NO\u003csub\u003ex\u003c\/sub\u003e emissions during cold starts.\u003c\/li\u003e\n        \u003cli\u003eUrea is injected upstream of the SCRF; the generated NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the SCR catalyst layer, while the filter walls trap soot.\u003c\/li\u003e\n        \u003cli\u003eAt low temperatures (below 200°C), urea decomposition is incomplete and NO\u003csub\u003e2\u003c\/sub\u003e conversion is limited. The tight‑coupled SCRF overcomes this by achieving faster warm‑up.\u003c\/li\u003e\n        \u003cli\u003eA downstream under‑floor SCR catalyst (with higher catalyst loading) provides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion during normal driving. Some heavy‑duty systems also include a small auxiliary SCR with an ASC (Ammonia Slip Catalyst) to control excess NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors upstream of the DOC and downstream of the SCRF are used to control urea dosing and monitor SCRF performance.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis layout (DOC + SCRF close‑coupled + under‑floor SCR) is typical for modern Euro 6 heavy‑duty diesel engines.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – SDPF和DPF之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between SDPF (SCRF) and DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eAlthough both are wall‑flow ceramic filters, SDPF (SCRF) and DPF differ significantly in design and function:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eFeature\u003c\/th\u003e\n            \u003cth\u003eSDPF \/ SCRF\u003c\/th\u003e\n            \u003cth\u003eDPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePrimary function\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSimultaneous particulate filtration and NO\u003csub\u003ex\u003c\/sub\u003e reduction (SCR)\u003c\/td\u003e\n            \u003ctd\u003eOnly particulate filtration\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains SCR catalyst (e.g., Cu‑zeolite) with precious metals\u003c\/td\u003e\n            \u003ctd\u003eTypically uncoated or only catalysed for soot oxidation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher porosity (typically \u0026gt; 50%) to allow SCR coating penetration and to maintain low backpressure\u003c\/td\u003e\n            \u003ctd\u003eLower porosity (typically 40‑50%)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea injection\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eRequires urea dosing upstream\u003c\/td\u003e\n            \u003ctd\u003eNo urea required\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eConverts NO\u003csub\u003ex\u003c\/sub\u003e to N\u003csub\u003e2\u003c\/sub\u003e using NH\u003csub\u003e3\u003c\/sub\u003e\n\u003c\/td\u003e\n            \u003ctd\u003eDoes not reduce NO\u003csub\u003ex\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6 heavy‑duty and light‑duty diesel vehicles\u003c\/td\u003e\n            \u003ctd\u003eEuro 4\/5 vehicles, or as a stand‑alone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher due to coating and complex design\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eThe key structural difference is that the SDPF\/SCRF has \u003cstrong\u003ehigher porosity\u003c\/strong\u003e to accommodate the SCR washcoat without excessively increasing backpressure.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – SDPF的示例图（根据图片用文字描述） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Example performance diagram of SDPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe following diagram illustrates the NO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency of a close‑coupled SCRF system compared to an under‑floor SCR system, based on real test data.\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eSystem\u003c\/th\u003e\n            \u003cth\u003eTemperature range\u003c\/th\u003e\n            \u003cth\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency\u003c\/th\u003e\n            \u003cth\u003eKey remarks\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\n\u003cstrong\u003ecc‑SCRF\u003c\/strong\u003e (close‑coupled)\u003c\/td\u003e\n            \u003ctd\u003e200 – 400°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% at 250°C, exceeds 90% above 300°C\u003c\/td\u003e\n            \u003ctd\u003eFast light‑off, active during cold start and warm‑up\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUnder‑floor main SCR\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e300 – 600°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% only above 400°C\u003c\/td\u003e\n            \u003ctd\u003eHigher catalyst loading, but slower light‑off\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eAuxiliary small SCR (with ASC)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e200 – 450°C\u003c\/td\u003e\n            \u003ctd\u003eProvides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion and ammonia slip control\u003c\/td\u003e\n            \u003ctd\u003eOften used in heavy‑duty vehicles\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eDiagram interpretation:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe cc‑SCRF (solid curve) achieves high NO\u003csub\u003ex\u003c\/sub\u003e conversion (\u0026gt;80%) already at ~250°C, while the under‑floor SCR (dashed curve) reaches the same level only above 400°C.\u003c\/li\u003e\n        \u003cli\u003eTwo urea injection points are shown: one upstream of the cc‑SCRF and a second upstream of the under‑floor SCR (for heavy‑duty applications).\u003c\/li\u003e\n        \u003cli\u003eA small auxiliary SCR is placed downstream to handle residual NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors before and after the system enable precise urea dosing and performance monitoring.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis configuration ensures optimal NO\u003csub\u003ex\u003c\/sub\u003e reduction across the entire operating range, especially during transient conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – SDPF\/SCRF 涂PT和不涂PT之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between Pt‑coated and uncoated SDPF\/SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe coating of platinum (Pt) on the SDPF\/SCRF significantly affects performance, especially at low temperatures. Here is a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003ePt‑coated SDPF\/SCRF\u003c\/th\u003e\n            \u003cth\u003eUncoated SDPF\/SCRF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO oxidation\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnables NO → NO\u003csub\u003e2\u003c\/sub\u003e conversion, improving low‑temperature SCR performance\u003c\/td\u003e\n            \u003ctd\u003eLimited NO oxidation; relies mainly on engine‑out NO\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eLow‑temperature activity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher activity below 250°C due to faster NH\u003csub\u003e3\u003c\/sub\u003e activation and NO\u003csub\u003e2\u003c\/sub\u003e promotion\u003c\/td\u003e\n            \u003ctd\u003eLower activity; needs higher temperature for effective SCR\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea decomposition\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSlightly improved due to local heat release from oxidation reactions\u003c\/td\u003e\n            \u003ctd\u003eNo such benefit\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePassive regeneration\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnhanced soot oxidation (due to NO\u003csub\u003e2\u003c\/sub\u003e) – lowers regeneration temperature\u003c\/td\u003e\n            \u003ctd\u003eHigher soot oxidation temperature, more active regeneration needed\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePt may suffer from sulfur poisoning and thermal ageing\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no precious metal degradation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSignificantly more expensive\u003c\/td\u003e\n            \u003ctd\u003eLower cost\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6d, cold‑start heavy‑duty, and vehicles with frequent low‑load operation\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 without extreme cold‑start demands\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn summary, Pt coating greatly improves cold‑start NO\u003csub\u003ex\u003c\/sub\u003e reduction and passive regeneration, but adds cost and complexity. The choice depends on emission targets and operating conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 我们的SDPF\/SCRF使用的是什么SCR基材 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e Which SCR substrate material do we use?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur SDPF\/SCRF products use a \u003cstrong\u003ecopper‑based zeolite (Cu‑zeolite)\u003c\/strong\u003e as the SCR catalyst material.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey advantages of Cu‑zeolite SCR:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExcellent low‑temperature activity:\u003c\/strong\u003e Effective even below 200°C, ideal for cold‑start and low‑load conditions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh hydrothermal durability:\u003c\/strong\u003e Withstands temperatures up to 650°C without significant degradation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGood resistance to sulfur poisoning\u003c\/strong\u003e compared to iron‑based zeolites.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBroad operating window:\u003c\/strong\u003e Maintains high NO\u003csub\u003ex\u003c\/sub\u003e conversion from 200°C to 500°C.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLower precious metal content\u003c\/strong\u003e than vanadium‑based systems, reducing cost.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis Cu‑zeolite coating is applied to the cordierite or silicon carbide DPF substrate (depending on the model) to provide both particulate filtration and SCR functionality in a single unit.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – SDPF\/SCRF的主要功能和工作原理是什么？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e Main functions and working principle of SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eMain functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eParticulate filtration:\u003c\/strong\u003e Traps soot and ash particles from diesel exhaust, reducing PM emissions by \u0026gt; 90%.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e reduction:\u003c\/strong\u003e Converts nitrogen oxides (NO and NO₂) into harmless nitrogen (N₂) and water (H₂O) via selective catalytic reduction.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePassive soot oxidation:\u003c\/strong\u003e Generates NO₂ from NO (with Pt coating) to oxidise trapped soot at lower temperatures, reducing regeneration frequency.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eWorking principle (step‑by‑step):\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExhaust gas enters the SCRF\u003c\/strong\u003e – containing NO, NO₂, soot, and other gaseous pollutants.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUrea injection\u003c\/strong\u003e – AdBlue (urea‑water solution) is sprayed upstream; it decomposes into NH\u003csub\u003e3\u003c\/sub\u003e and CO₂.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNH\u003csub\u003e3\u003c\/sub\u003e mixes with exhaust\u003c\/strong\u003e and flows into the SCRF channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration\u003c\/strong\u003e – The wall‑flow structure forces the gas through the porous walls, trapping soot on the inlet channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSCR reaction\u003c\/strong\u003e – NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the Cu‑zeolite catalyst layer on the filter walls, producing N₂ and H₂O.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration\u003c\/strong\u003e – Accumulated soot is periodically burned off via passive oxidation (using NO₂) or active regeneration (raising exhaust temperature to ~600°C).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eClean gas exits\u003c\/strong\u003e – with significantly reduced particulate and NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/li\u003e\n      \u003c\/ol\u003e\n      \u003cp\u003eThis integrated design saves space, reduces system complexity, and improves overall emission control efficiency compared to separate DPF + SCR units.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 堇青石材质和碳化硅的区别？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Difference between cordierite and silicon carbide materials?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are used as DPF\/SCRF substrates. Their differences are summarized below:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide (SiC)\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal expansion coefficient\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eVery low (~1.5×10⁻⁶\/℃)\u003c\/td\u003e\n            \u003ctd\u003eHigher (~4.0×10⁻⁶\/℃)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal shock resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited above 1000°C\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands high thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaximum operating temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1200°C\u003c\/td\u003e\n            \u003ctd\u003e~1600°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50% (can be tailored)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHeavier\u003c\/td\u003e\n            \u003ctd\u003eLighter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn general, cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions, especially where frequent regeneration is required.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – SDPF\/SCRF最小起订量 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e Minimum order quantity (MOQ) for SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur minimum order quantities vary by material type:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSilicon Carbide (SiC) material:\u003c\/strong\u003e \u003cstrong\u003e3 pieces\u003c\/strong\u003e (3pcs)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCordierite material:\u003c\/strong\u003e \u003cstrong\u003e10 pieces\u003c\/strong\u003e (10pcs)\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThese MOQs are set to ensure efficient production and coating processes. For larger volumes, we offer competitive pricing and shorter lead times. If you require a specific quantity below these MOQs, please contact our sales team to discuss possibilities.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 公司总部地址 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 如何联系我们 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"Cordierite \/ SCR Coating \/ 172x100mm","offer_id":54464008356186,"sku":null,"price":59.8,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ SCR Coating \/ 172x130mm","offer_id":54464008388954,"sku":null,"price":77.85,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ SCR Coating \/ 172x203mm","offer_id":54464008421722,"sku":null,"price":121.41,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 172x100mm","offer_id":54464008454490,"sku":null,"price":103.11,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 172x130mm","offer_id":54464008487258,"sku":null,"price":134.22,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 172x203mm","offer_id":54464008520026,"sku":null,"price":209.33,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 172x100mm","offer_id":54464008552794,"sku":null,"price":88.68,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 172x130mm","offer_id":54464008585562,"sku":null,"price":115.43,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 172x203mm","offer_id":54464008618330,"sku":null,"price":180.03,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 172x100mm","offer_id":54464008651098,"sku":null,"price":131.98,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 172x130mm","offer_id":54464008683866,"sku":null,"price":171.8,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 172x203mm","offer_id":54464008716634,"sku":null,"price":267.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/3_8ed1a511-e4fd-4db9-a700-d9e9cccb5afc.jpg?v=1784796443"},{"product_id":"dpf-scrf-sic-ceramic-diesel-particulate-filter-180mm-7-09","title":"DPF\/SCRF SiC Ceramic Diesel Particulate Filter 180mm (7.09\")","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是SDPF\/SCRF --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is SDPF \/ SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eSDPF\u003c\/strong\u003e (Selective Catalytic Reduction Filter) or \u003cstrong\u003eSCRF\u003c\/strong\u003e (SCR on Filter) is an integrated after‑treatment device that combines a DPF (Diesel Particulate Filter) with an SCR (Selective Catalytic Reduction) catalyst coating on the same substrate. This configuration simultaneously removes particulate matter (soot) and reduces NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eStructure and operating principle:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe SCRF is positioned close to the engine outlet (tight‑coupled) to reach urea decomposition temperature and SCR light‑off temperature quickly, avoiding excessive NO\u003csub\u003ex\u003c\/sub\u003e emissions during cold starts.\u003c\/li\u003e\n        \u003cli\u003eUrea is injected upstream of the SCRF; the generated NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the SCR catalyst layer, while the filter walls trap soot.\u003c\/li\u003e\n        \u003cli\u003eAt low temperatures (below 200°C), urea decomposition is incomplete and NO\u003csub\u003e2\u003c\/sub\u003e conversion is limited. The tight‑coupled SCRF overcomes this by achieving faster warm‑up.\u003c\/li\u003e\n        \u003cli\u003eA downstream under‑floor SCR catalyst (with higher catalyst loading) provides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion during normal driving. Some heavy‑duty systems also include a small auxiliary SCR with an ASC (Ammonia Slip Catalyst) to control excess NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors upstream of the DOC and downstream of the SCRF are used to control urea dosing and monitor SCRF performance.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis layout (DOC + SCRF close‑coupled + under‑floor SCR) is typical for modern Euro 6 heavy‑duty diesel engines.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – SDPF和DPF之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between SDPF (SCRF) and DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eAlthough both are wall‑flow ceramic filters, SDPF (SCRF) and DPF differ significantly in design and function:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eFeature\u003c\/th\u003e\n            \u003cth\u003eSDPF \/ SCRF\u003c\/th\u003e\n            \u003cth\u003eDPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePrimary function\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSimultaneous particulate filtration and NO\u003csub\u003ex\u003c\/sub\u003e reduction (SCR)\u003c\/td\u003e\n            \u003ctd\u003eOnly particulate filtration\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains SCR catalyst (e.g., Cu‑zeolite) with precious metals\u003c\/td\u003e\n            \u003ctd\u003eTypically uncoated or only catalysed for soot oxidation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher porosity (typically \u0026gt; 50%) to allow SCR coating penetration and to maintain low backpressure\u003c\/td\u003e\n            \u003ctd\u003eLower porosity (typically 40‑50%)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea injection\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eRequires urea dosing upstream\u003c\/td\u003e\n            \u003ctd\u003eNo urea required\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eConverts NO\u003csub\u003ex\u003c\/sub\u003e to N\u003csub\u003e2\u003c\/sub\u003e using NH\u003csub\u003e3\u003c\/sub\u003e\n\u003c\/td\u003e\n            \u003ctd\u003eDoes not reduce NO\u003csub\u003ex\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6 heavy‑duty and light‑duty diesel vehicles\u003c\/td\u003e\n            \u003ctd\u003eEuro 4\/5 vehicles, or as a stand‑alone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher due to coating and complex design\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eThe key structural difference is that the SDPF\/SCRF has \u003cstrong\u003ehigher porosity\u003c\/strong\u003e to accommodate the SCR washcoat without excessively increasing backpressure.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – SDPF的示例图（根据图片用文字描述） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Example performance diagram of SDPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe following diagram illustrates the NO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency of a close‑coupled SCRF system compared to an under‑floor SCR system, based on real test data.\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eSystem\u003c\/th\u003e\n            \u003cth\u003eTemperature range\u003c\/th\u003e\n            \u003cth\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency\u003c\/th\u003e\n            \u003cth\u003eKey remarks\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\n\u003cstrong\u003ecc‑SCRF\u003c\/strong\u003e (close‑coupled)\u003c\/td\u003e\n            \u003ctd\u003e200 – 400°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% at 250°C, exceeds 90% above 300°C\u003c\/td\u003e\n            \u003ctd\u003eFast light‑off, active during cold start and warm‑up\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUnder‑floor main SCR\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e300 – 600°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% only above 400°C\u003c\/td\u003e\n            \u003ctd\u003eHigher catalyst loading, but slower light‑off\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eAuxiliary small SCR (with ASC)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e200 – 450°C\u003c\/td\u003e\n            \u003ctd\u003eProvides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion and ammonia slip control\u003c\/td\u003e\n            \u003ctd\u003eOften used in heavy‑duty vehicles\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eDiagram interpretation:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe cc‑SCRF (solid curve) achieves high NO\u003csub\u003ex\u003c\/sub\u003e conversion (\u0026gt;80%) already at ~250°C, while the under‑floor SCR (dashed curve) reaches the same level only above 400°C.\u003c\/li\u003e\n        \u003cli\u003eTwo urea injection points are shown: one upstream of the cc‑SCRF and a second upstream of the under‑floor SCR (for heavy‑duty applications).\u003c\/li\u003e\n        \u003cli\u003eA small auxiliary SCR is placed downstream to handle residual NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors before and after the system enable precise urea dosing and performance monitoring.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis configuration ensures optimal NO\u003csub\u003ex\u003c\/sub\u003e reduction across the entire operating range, especially during transient conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – SDPF\/SCRF 涂PT和不涂PT之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between Pt‑coated and uncoated SDPF\/SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe coating of platinum (Pt) on the SDPF\/SCRF significantly affects performance, especially at low temperatures. Here is a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003ePt‑coated SDPF\/SCRF\u003c\/th\u003e\n            \u003cth\u003eUncoated SDPF\/SCRF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO oxidation\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnables NO → NO\u003csub\u003e2\u003c\/sub\u003e conversion, improving low‑temperature SCR performance\u003c\/td\u003e\n            \u003ctd\u003eLimited NO oxidation; relies mainly on engine‑out NO\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eLow‑temperature activity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher activity below 250°C due to faster NH\u003csub\u003e3\u003c\/sub\u003e activation and NO\u003csub\u003e2\u003c\/sub\u003e promotion\u003c\/td\u003e\n            \u003ctd\u003eLower activity; needs higher temperature for effective SCR\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea decomposition\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSlightly improved due to local heat release from oxidation reactions\u003c\/td\u003e\n            \u003ctd\u003eNo such benefit\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePassive regeneration\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnhanced soot oxidation (due to NO\u003csub\u003e2\u003c\/sub\u003e) – lowers regeneration temperature\u003c\/td\u003e\n            \u003ctd\u003eHigher soot oxidation temperature, more active regeneration needed\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePt may suffer from sulfur poisoning and thermal ageing\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no precious metal degradation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSignificantly more expensive\u003c\/td\u003e\n            \u003ctd\u003eLower cost\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6d, cold‑start heavy‑duty, and vehicles with frequent low‑load operation\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 without extreme cold‑start demands\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn summary, Pt coating greatly improves cold‑start NO\u003csub\u003ex\u003c\/sub\u003e reduction and passive regeneration, but adds cost and complexity. The choice depends on emission targets and operating conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 我们的SDPF\/SCRF使用的是什么SCR基材 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e Which SCR substrate material do we use?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur SDPF\/SCRF products use a \u003cstrong\u003ecopper‑based zeolite (Cu‑zeolite)\u003c\/strong\u003e as the SCR catalyst material.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey advantages of Cu‑zeolite SCR:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExcellent low‑temperature activity:\u003c\/strong\u003e Effective even below 200°C, ideal for cold‑start and low‑load conditions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh hydrothermal durability:\u003c\/strong\u003e Withstands temperatures up to 650°C without significant degradation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGood resistance to sulfur poisoning\u003c\/strong\u003e compared to iron‑based zeolites.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBroad operating window:\u003c\/strong\u003e Maintains high NO\u003csub\u003ex\u003c\/sub\u003e conversion from 200°C to 500°C.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLower precious metal content\u003c\/strong\u003e than vanadium‑based systems, reducing cost.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis Cu‑zeolite coating is applied to the cordierite or silicon carbide DPF substrate (depending on the model) to provide both particulate filtration and SCR functionality in a single unit.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – SDPF\/SCRF的主要功能和工作原理是什么？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e Main functions and working principle of SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eMain functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eParticulate filtration:\u003c\/strong\u003e Traps soot and ash particles from diesel exhaust, reducing PM emissions by \u0026gt; 90%.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e reduction:\u003c\/strong\u003e Converts nitrogen oxides (NO and NO₂) into harmless nitrogen (N₂) and water (H₂O) via selective catalytic reduction.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePassive soot oxidation:\u003c\/strong\u003e Generates NO₂ from NO (with Pt coating) to oxidise trapped soot at lower temperatures, reducing regeneration frequency.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eWorking principle (step‑by‑step):\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExhaust gas enters the SCRF\u003c\/strong\u003e – containing NO, NO₂, soot, and other gaseous pollutants.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUrea injection\u003c\/strong\u003e – AdBlue (urea‑water solution) is sprayed upstream; it decomposes into NH\u003csub\u003e3\u003c\/sub\u003e and CO₂.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNH\u003csub\u003e3\u003c\/sub\u003e mixes with exhaust\u003c\/strong\u003e and flows into the SCRF channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration\u003c\/strong\u003e – The wall‑flow structure forces the gas through the porous walls, trapping soot on the inlet channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSCR reaction\u003c\/strong\u003e – NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the Cu‑zeolite catalyst layer on the filter walls, producing N₂ and H₂O.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration\u003c\/strong\u003e – Accumulated soot is periodically burned off via passive oxidation (using NO₂) or active regeneration (raising exhaust temperature to ~600°C).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eClean gas exits\u003c\/strong\u003e – with significantly reduced particulate and NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/li\u003e\n      \u003c\/ol\u003e\n      \u003cp\u003eThis integrated design saves space, reduces system complexity, and improves overall emission control efficiency compared to separate DPF + SCR units.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 堇青石材质和碳化硅的区别？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Difference between cordierite and silicon carbide materials?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are used as DPF\/SCRF substrates. Their differences are summarized below:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide (SiC)\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal expansion coefficient\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eVery low (~1.5×10⁻⁶\/℃)\u003c\/td\u003e\n            \u003ctd\u003eHigher (~4.0×10⁻⁶\/℃)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal shock resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited above 1000°C\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands high thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaximum operating temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1200°C\u003c\/td\u003e\n            \u003ctd\u003e~1600°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50% (can be tailored)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHeavier\u003c\/td\u003e\n            \u003ctd\u003eLighter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn general, cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions, especially where frequent regeneration is required.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – SDPF\/SCRF最小起订量 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e Minimum order quantity (MOQ) for SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur minimum order quantities vary by material type:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSilicon Carbide (SiC) material:\u003c\/strong\u003e \u003cstrong\u003e3 pieces\u003c\/strong\u003e (3pcs)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCordierite material:\u003c\/strong\u003e \u003cstrong\u003e10 pieces\u003c\/strong\u003e (10pcs)\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThese MOQs are set to ensure efficient production and coating processes. For larger volumes, we offer competitive pricing and shorter lead times. If you require a specific quantity below these MOQs, please contact our sales team to discuss possibilities.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 公司总部地址 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 如何联系我们 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"Cordierite \/ SCR Coating \/ 180x180mm","offer_id":54464137331034,"sku":null,"price":118.06,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 180x180mm","offer_id":54464137363802,"sku":null,"price":203.56,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 180x180mm","offer_id":54464137396570,"sku":null,"price":175.06,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 180x180mm","offer_id":54464137429338,"sku":null,"price":260.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/11_c7336ebc-ea54-4550-80b3-d48f4be57c5e.jpg?v=1784797419"},{"product_id":"dpf-scrf-sic-ceramic-diesel-particulate-filter-132mm-5-2","title":"DPF\/SCRF SiC Ceramic Diesel Particulate Filter 132mm (5.2\")","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是SDPF\/SCRF --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is SDPF \/ SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eSDPF\u003c\/strong\u003e (Selective Catalytic Reduction Filter) or \u003cstrong\u003eSCRF\u003c\/strong\u003e (SCR on Filter) is an integrated after‑treatment device that combines a DPF (Diesel Particulate Filter) with an SCR (Selective Catalytic Reduction) catalyst coating on the same substrate. This configuration simultaneously removes particulate matter (soot) and reduces NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eStructure and operating principle:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe SCRF is positioned close to the engine outlet (tight‑coupled) to reach urea decomposition temperature and SCR light‑off temperature quickly, avoiding excessive NO\u003csub\u003ex\u003c\/sub\u003e emissions during cold starts.\u003c\/li\u003e\n        \u003cli\u003eUrea is injected upstream of the SCRF; the generated NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the SCR catalyst layer, while the filter walls trap soot.\u003c\/li\u003e\n        \u003cli\u003eAt low temperatures (below 200°C), urea decomposition is incomplete and NO\u003csub\u003e2\u003c\/sub\u003e conversion is limited. The tight‑coupled SCRF overcomes this by achieving faster warm‑up.\u003c\/li\u003e\n        \u003cli\u003eA downstream under‑floor SCR catalyst (with higher catalyst loading) provides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion during normal driving. Some heavy‑duty systems also include a small auxiliary SCR with an ASC (Ammonia Slip Catalyst) to control excess NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors upstream of the DOC and downstream of the SCRF are used to control urea dosing and monitor SCRF performance.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis layout (DOC + SCRF close‑coupled + under‑floor SCR) is typical for modern Euro 6 heavy‑duty diesel engines.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – SDPF和DPF之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between SDPF (SCRF) and DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eAlthough both are wall‑flow ceramic filters, SDPF (SCRF) and DPF differ significantly in design and function:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eFeature\u003c\/th\u003e\n            \u003cth\u003eSDPF \/ SCRF\u003c\/th\u003e\n            \u003cth\u003eDPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePrimary function\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSimultaneous particulate filtration and NO\u003csub\u003ex\u003c\/sub\u003e reduction (SCR)\u003c\/td\u003e\n            \u003ctd\u003eOnly particulate filtration\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains SCR catalyst (e.g., Cu‑zeolite) with precious metals\u003c\/td\u003e\n            \u003ctd\u003eTypically uncoated or only catalysed for soot oxidation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher porosity (typically \u0026gt; 50%) to allow SCR coating penetration and to maintain low backpressure\u003c\/td\u003e\n            \u003ctd\u003eLower porosity (typically 40‑50%)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea injection\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eRequires urea dosing upstream\u003c\/td\u003e\n            \u003ctd\u003eNo urea required\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eConverts NO\u003csub\u003ex\u003c\/sub\u003e to N\u003csub\u003e2\u003c\/sub\u003e using NH\u003csub\u003e3\u003c\/sub\u003e\n\u003c\/td\u003e\n            \u003ctd\u003eDoes not reduce NO\u003csub\u003ex\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6 heavy‑duty and light‑duty diesel vehicles\u003c\/td\u003e\n            \u003ctd\u003eEuro 4\/5 vehicles, or as a stand‑alone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher due to coating and complex design\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eThe key structural difference is that the SDPF\/SCRF has \u003cstrong\u003ehigher porosity\u003c\/strong\u003e to accommodate the SCR washcoat without excessively increasing backpressure.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – SDPF的示例图（根据图片用文字描述） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Example performance diagram of SDPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe following diagram illustrates the NO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency of a close‑coupled SCRF system compared to an under‑floor SCR system, based on real test data.\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eSystem\u003c\/th\u003e\n            \u003cth\u003eTemperature range\u003c\/th\u003e\n            \u003cth\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency\u003c\/th\u003e\n            \u003cth\u003eKey remarks\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\n\u003cstrong\u003ecc‑SCRF\u003c\/strong\u003e (close‑coupled)\u003c\/td\u003e\n            \u003ctd\u003e200 – 400°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% at 250°C, exceeds 90% above 300°C\u003c\/td\u003e\n            \u003ctd\u003eFast light‑off, active during cold start and warm‑up\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUnder‑floor main SCR\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e300 – 600°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% only above 400°C\u003c\/td\u003e\n            \u003ctd\u003eHigher catalyst loading, but slower light‑off\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eAuxiliary small SCR (with ASC)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e200 – 450°C\u003c\/td\u003e\n            \u003ctd\u003eProvides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion and ammonia slip control\u003c\/td\u003e\n            \u003ctd\u003eOften used in heavy‑duty vehicles\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eDiagram interpretation:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe cc‑SCRF (solid curve) achieves high NO\u003csub\u003ex\u003c\/sub\u003e conversion (\u0026gt;80%) already at ~250°C, while the under‑floor SCR (dashed curve) reaches the same level only above 400°C.\u003c\/li\u003e\n        \u003cli\u003eTwo urea injection points are shown: one upstream of the cc‑SCRF and a second upstream of the under‑floor SCR (for heavy‑duty applications).\u003c\/li\u003e\n        \u003cli\u003eA small auxiliary SCR is placed downstream to handle residual NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors before and after the system enable precise urea dosing and performance monitoring.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis configuration ensures optimal NO\u003csub\u003ex\u003c\/sub\u003e reduction across the entire operating range, especially during transient conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – SDPF\/SCRF 涂PT和不涂PT之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between Pt‑coated and uncoated SDPF\/SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe coating of platinum (Pt) on the SDPF\/SCRF significantly affects performance, especially at low temperatures. Here is a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003ePt‑coated SDPF\/SCRF\u003c\/th\u003e\n            \u003cth\u003eUncoated SDPF\/SCRF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO oxidation\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnables NO → NO\u003csub\u003e2\u003c\/sub\u003e conversion, improving low‑temperature SCR performance\u003c\/td\u003e\n            \u003ctd\u003eLimited NO oxidation; relies mainly on engine‑out NO\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eLow‑temperature activity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher activity below 250°C due to faster NH\u003csub\u003e3\u003c\/sub\u003e activation and NO\u003csub\u003e2\u003c\/sub\u003e promotion\u003c\/td\u003e\n            \u003ctd\u003eLower activity; needs higher temperature for effective SCR\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea decomposition\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSlightly improved due to local heat release from oxidation reactions\u003c\/td\u003e\n            \u003ctd\u003eNo such benefit\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePassive regeneration\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnhanced soot oxidation (due to NO\u003csub\u003e2\u003c\/sub\u003e) – lowers regeneration temperature\u003c\/td\u003e\n            \u003ctd\u003eHigher soot oxidation temperature, more active regeneration needed\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePt may suffer from sulfur poisoning and thermal ageing\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no precious metal degradation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSignificantly more expensive\u003c\/td\u003e\n            \u003ctd\u003eLower cost\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6d, cold‑start heavy‑duty, and vehicles with frequent low‑load operation\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 without extreme cold‑start demands\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn summary, Pt coating greatly improves cold‑start NO\u003csub\u003ex\u003c\/sub\u003e reduction and passive regeneration, but adds cost and complexity. The choice depends on emission targets and operating conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 我们的SDPF\/SCRF使用的是什么SCR基材 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e Which SCR substrate material do we use?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur SDPF\/SCRF products use a \u003cstrong\u003ecopper‑based zeolite (Cu‑zeolite)\u003c\/strong\u003e as the SCR catalyst material.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey advantages of Cu‑zeolite SCR:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExcellent low‑temperature activity:\u003c\/strong\u003e Effective even below 200°C, ideal for cold‑start and low‑load conditions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh hydrothermal durability:\u003c\/strong\u003e Withstands temperatures up to 650°C without significant degradation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGood resistance to sulfur poisoning\u003c\/strong\u003e compared to iron‑based zeolites.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBroad operating window:\u003c\/strong\u003e Maintains high NO\u003csub\u003ex\u003c\/sub\u003e conversion from 200°C to 500°C.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLower precious metal content\u003c\/strong\u003e than vanadium‑based systems, reducing cost.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis Cu‑zeolite coating is applied to the cordierite or silicon carbide DPF substrate (depending on the model) to provide both particulate filtration and SCR functionality in a single unit.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – SDPF\/SCRF的主要功能和工作原理是什么？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e Main functions and working principle of SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eMain functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eParticulate filtration:\u003c\/strong\u003e Traps soot and ash particles from diesel exhaust, reducing PM emissions by \u0026gt; 90%.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e reduction:\u003c\/strong\u003e Converts nitrogen oxides (NO and NO₂) into harmless nitrogen (N₂) and water (H₂O) via selective catalytic reduction.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePassive soot oxidation:\u003c\/strong\u003e Generates NO₂ from NO (with Pt coating) to oxidise trapped soot at lower temperatures, reducing regeneration frequency.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eWorking principle (step‑by‑step):\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExhaust gas enters the SCRF\u003c\/strong\u003e – containing NO, NO₂, soot, and other gaseous pollutants.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUrea injection\u003c\/strong\u003e – AdBlue (urea‑water solution) is sprayed upstream; it decomposes into NH\u003csub\u003e3\u003c\/sub\u003e and CO₂.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNH\u003csub\u003e3\u003c\/sub\u003e mixes with exhaust\u003c\/strong\u003e and flows into the SCRF channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration\u003c\/strong\u003e – The wall‑flow structure forces the gas through the porous walls, trapping soot on the inlet channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSCR reaction\u003c\/strong\u003e – NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the Cu‑zeolite catalyst layer on the filter walls, producing N₂ and H₂O.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration\u003c\/strong\u003e – Accumulated soot is periodically burned off via passive oxidation (using NO₂) or active regeneration (raising exhaust temperature to ~600°C).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eClean gas exits\u003c\/strong\u003e – with significantly reduced particulate and NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/li\u003e\n      \u003c\/ol\u003e\n      \u003cp\u003eThis integrated design saves space, reduces system complexity, and improves overall emission control efficiency compared to separate DPF + SCR units.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 堇青石材质和碳化硅的区别？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Difference between cordierite and silicon carbide materials?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are used as DPF\/SCRF substrates. Their differences are summarized below:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide (SiC)\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal expansion coefficient\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eVery low (~1.5×10⁻⁶\/℃)\u003c\/td\u003e\n            \u003ctd\u003eHigher (~4.0×10⁻⁶\/℃)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal shock resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited above 1000°C\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands high thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaximum operating temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1200°C\u003c\/td\u003e\n            \u003ctd\u003e~1600°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50% (can be tailored)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHeavier\u003c\/td\u003e\n            \u003ctd\u003eLighter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn general, cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions, especially where frequent regeneration is required.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – SDPF\/SCRF最小起订量 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e Minimum order quantity (MOQ) for SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur minimum order quantities vary by material type:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSilicon Carbide (SiC) material:\u003c\/strong\u003e \u003cstrong\u003e3 pieces\u003c\/strong\u003e (3pcs)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCordierite material:\u003c\/strong\u003e \u003cstrong\u003e10 pieces\u003c\/strong\u003e (10pcs)\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThese MOQs are set to ensure efficient production and coating processes. For larger volumes, we offer competitive pricing and shorter lead times. If you require a specific quantity below these MOQs, please contact our sales team to discuss possibilities.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 公司总部地址 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 如何联系我们 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"Cordierite \/ SCR Coating \/ 132x125mm","offer_id":54578172100954,"sku":null,"price":44.08,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ SCR Coating \/ 132x152mm","offer_id":54578174919002,"sku":null,"price":53.62,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 132x125mm","offer_id":54578174951770,"sku":null,"price":76.0,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 132x152mm","offer_id":54578174984538,"sku":null,"price":92.44,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 132x125mm","offer_id":54578175017306,"sku":null,"price":65.36,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 132x152mm","offer_id":54578175050074,"sku":null,"price":79.5,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 132x125mm","offer_id":54578175082842,"sku":null,"price":97.28,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 132x152mm","offer_id":54578175115610,"sku":null,"price":118.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/111_1d7cfe81-41de-4b0d-8aed-aa67afecbfa8.jpg?v=1786675282"},{"product_id":"dpf-scrf-sic-ceramic-diesel-particulate-filter-118mm-4-65","title":"DPF\/SCRF SiC Ceramic Diesel Particulate Filter 118mm (4.65\")","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是SDPF\/SCRF --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is SDPF \/ SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eSDPF\u003c\/strong\u003e (Selective Catalytic Reduction Filter) or \u003cstrong\u003eSCRF\u003c\/strong\u003e (SCR on Filter) is an integrated after‑treatment device that combines a DPF (Diesel Particulate Filter) with an SCR (Selective Catalytic Reduction) catalyst coating on the same substrate. This configuration simultaneously removes particulate matter (soot) and reduces NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eStructure and operating principle:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe SCRF is positioned close to the engine outlet (tight‑coupled) to reach urea decomposition temperature and SCR light‑off temperature quickly, avoiding excessive NO\u003csub\u003ex\u003c\/sub\u003e emissions during cold starts.\u003c\/li\u003e\n        \u003cli\u003eUrea is injected upstream of the SCRF; the generated NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the SCR catalyst layer, while the filter walls trap soot.\u003c\/li\u003e\n        \u003cli\u003eAt low temperatures (below 200°C), urea decomposition is incomplete and NO\u003csub\u003e2\u003c\/sub\u003e conversion is limited. The tight‑coupled SCRF overcomes this by achieving faster warm‑up.\u003c\/li\u003e\n        \u003cli\u003eA downstream under‑floor SCR catalyst (with higher catalyst loading) provides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion during normal driving. Some heavy‑duty systems also include a small auxiliary SCR with an ASC (Ammonia Slip Catalyst) to control excess NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors upstream of the DOC and downstream of the SCRF are used to control urea dosing and monitor SCRF performance.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis layout (DOC + SCRF close‑coupled + under‑floor SCR) is typical for modern Euro 6 heavy‑duty diesel engines.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – SDPF和DPF之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between SDPF (SCRF) and DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eAlthough both are wall‑flow ceramic filters, SDPF (SCRF) and DPF differ significantly in design and function:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eFeature\u003c\/th\u003e\n            \u003cth\u003eSDPF \/ SCRF\u003c\/th\u003e\n            \u003cth\u003eDPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePrimary function\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSimultaneous particulate filtration and NO\u003csub\u003ex\u003c\/sub\u003e reduction (SCR)\u003c\/td\u003e\n            \u003ctd\u003eOnly particulate filtration\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains SCR catalyst (e.g., Cu‑zeolite) with precious metals\u003c\/td\u003e\n            \u003ctd\u003eTypically uncoated or only catalysed for soot oxidation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher porosity (typically \u0026gt; 50%) to allow SCR coating penetration and to maintain low backpressure\u003c\/td\u003e\n            \u003ctd\u003eLower porosity (typically 40‑50%)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea injection\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eRequires urea dosing upstream\u003c\/td\u003e\n            \u003ctd\u003eNo urea required\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eConverts NO\u003csub\u003ex\u003c\/sub\u003e to N\u003csub\u003e2\u003c\/sub\u003e using NH\u003csub\u003e3\u003c\/sub\u003e\n\u003c\/td\u003e\n            \u003ctd\u003eDoes not reduce NO\u003csub\u003ex\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6 heavy‑duty and light‑duty diesel vehicles\u003c\/td\u003e\n            \u003ctd\u003eEuro 4\/5 vehicles, or as a stand‑alone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher due to coating and complex design\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eThe key structural difference is that the SDPF\/SCRF has \u003cstrong\u003ehigher porosity\u003c\/strong\u003e to accommodate the SCR washcoat without excessively increasing backpressure.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – SDPF的示例图（根据图片用文字描述） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Example performance diagram of SDPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe following diagram illustrates the NO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency of a close‑coupled SCRF system compared to an under‑floor SCR system, based on real test data.\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eSystem\u003c\/th\u003e\n            \u003cth\u003eTemperature range\u003c\/th\u003e\n            \u003cth\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency\u003c\/th\u003e\n            \u003cth\u003eKey remarks\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\n\u003cstrong\u003ecc‑SCRF\u003c\/strong\u003e (close‑coupled)\u003c\/td\u003e\n            \u003ctd\u003e200 – 400°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% at 250°C, exceeds 90% above 300°C\u003c\/td\u003e\n            \u003ctd\u003eFast light‑off, active during cold start and warm‑up\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUnder‑floor main SCR\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e300 – 600°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% only above 400°C\u003c\/td\u003e\n            \u003ctd\u003eHigher catalyst loading, but slower light‑off\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eAuxiliary small SCR (with ASC)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e200 – 450°C\u003c\/td\u003e\n            \u003ctd\u003eProvides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion and ammonia slip control\u003c\/td\u003e\n            \u003ctd\u003eOften used in heavy‑duty vehicles\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eDiagram interpretation:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe cc‑SCRF (solid curve) achieves high NO\u003csub\u003ex\u003c\/sub\u003e conversion (\u0026gt;80%) already at ~250°C, while the under‑floor SCR (dashed curve) reaches the same level only above 400°C.\u003c\/li\u003e\n        \u003cli\u003eTwo urea injection points are shown: one upstream of the cc‑SCRF and a second upstream of the under‑floor SCR (for heavy‑duty applications).\u003c\/li\u003e\n        \u003cli\u003eA small auxiliary SCR is placed downstream to handle residual NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors before and after the system enable precise urea dosing and performance monitoring.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis configuration ensures optimal NO\u003csub\u003ex\u003c\/sub\u003e reduction across the entire operating range, especially during transient conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – SDPF\/SCRF 涂PT和不涂PT之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between Pt‑coated and uncoated SDPF\/SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe coating of platinum (Pt) on the SDPF\/SCRF significantly affects performance, especially at low temperatures. Here is a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003ePt‑coated SDPF\/SCRF\u003c\/th\u003e\n            \u003cth\u003eUncoated SDPF\/SCRF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO oxidation\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnables NO → NO\u003csub\u003e2\u003c\/sub\u003e conversion, improving low‑temperature SCR performance\u003c\/td\u003e\n            \u003ctd\u003eLimited NO oxidation; relies mainly on engine‑out NO\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eLow‑temperature activity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher activity below 250°C due to faster NH\u003csub\u003e3\u003c\/sub\u003e activation and NO\u003csub\u003e2\u003c\/sub\u003e promotion\u003c\/td\u003e\n            \u003ctd\u003eLower activity; needs higher temperature for effective SCR\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea decomposition\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSlightly improved due to local heat release from oxidation reactions\u003c\/td\u003e\n            \u003ctd\u003eNo such benefit\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePassive regeneration\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnhanced soot oxidation (due to NO\u003csub\u003e2\u003c\/sub\u003e) – lowers regeneration temperature\u003c\/td\u003e\n            \u003ctd\u003eHigher soot oxidation temperature, more active regeneration needed\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePt may suffer from sulfur poisoning and thermal ageing\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no precious metal degradation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSignificantly more expensive\u003c\/td\u003e\n            \u003ctd\u003eLower cost\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6d, cold‑start heavy‑duty, and vehicles with frequent low‑load operation\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 without extreme cold‑start demands\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn summary, Pt coating greatly improves cold‑start NO\u003csub\u003ex\u003c\/sub\u003e reduction and passive regeneration, but adds cost and complexity. The choice depends on emission targets and operating conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 我们的SDPF\/SCRF使用的是什么SCR基材 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e Which SCR substrate material do we use?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur SDPF\/SCRF products use a \u003cstrong\u003ecopper‑based zeolite (Cu‑zeolite)\u003c\/strong\u003e as the SCR catalyst material.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey advantages of Cu‑zeolite SCR:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExcellent low‑temperature activity:\u003c\/strong\u003e Effective even below 200°C, ideal for cold‑start and low‑load conditions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh hydrothermal durability:\u003c\/strong\u003e Withstands temperatures up to 650°C without significant degradation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGood resistance to sulfur poisoning\u003c\/strong\u003e compared to iron‑based zeolites.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBroad operating window:\u003c\/strong\u003e Maintains high NO\u003csub\u003ex\u003c\/sub\u003e conversion from 200°C to 500°C.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLower precious metal content\u003c\/strong\u003e than vanadium‑based systems, reducing cost.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis Cu‑zeolite coating is applied to the cordierite or silicon carbide DPF substrate (depending on the model) to provide both particulate filtration and SCR functionality in a single unit.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – SDPF\/SCRF的主要功能和工作原理是什么？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e Main functions and working principle of SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eMain functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eParticulate filtration:\u003c\/strong\u003e Traps soot and ash particles from diesel exhaust, reducing PM emissions by \u0026gt; 90%.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e reduction:\u003c\/strong\u003e Converts nitrogen oxides (NO and NO₂) into harmless nitrogen (N₂) and water (H₂O) via selective catalytic reduction.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePassive soot oxidation:\u003c\/strong\u003e Generates NO₂ from NO (with Pt coating) to oxidise trapped soot at lower temperatures, reducing regeneration frequency.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eWorking principle (step‑by‑step):\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExhaust gas enters the SCRF\u003c\/strong\u003e – containing NO, NO₂, soot, and other gaseous pollutants.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUrea injection\u003c\/strong\u003e – AdBlue (urea‑water solution) is sprayed upstream; it decomposes into NH\u003csub\u003e3\u003c\/sub\u003e and CO₂.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNH\u003csub\u003e3\u003c\/sub\u003e mixes with exhaust\u003c\/strong\u003e and flows into the SCRF channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration\u003c\/strong\u003e – The wall‑flow structure forces the gas through the porous walls, trapping soot on the inlet channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSCR reaction\u003c\/strong\u003e – NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the Cu‑zeolite catalyst layer on the filter walls, producing N₂ and H₂O.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration\u003c\/strong\u003e – Accumulated soot is periodically burned off via passive oxidation (using NO₂) or active regeneration (raising exhaust temperature to ~600°C).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eClean gas exits\u003c\/strong\u003e – with significantly reduced particulate and NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/li\u003e\n      \u003c\/ol\u003e\n      \u003cp\u003eThis integrated design saves space, reduces system complexity, and improves overall emission control efficiency compared to separate DPF + SCR units.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 堇青石材质和碳化硅的区别？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Difference between cordierite and silicon carbide materials?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are used as DPF\/SCRF substrates. Their differences are summarized below:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide (SiC)\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal expansion coefficient\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eVery low (~1.5×10⁻⁶\/℃)\u003c\/td\u003e\n            \u003ctd\u003eHigher (~4.0×10⁻⁶\/℃)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal shock resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited above 1000°C\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands high thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaximum operating temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1200°C\u003c\/td\u003e\n            \u003ctd\u003e~1600°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50% (can be tailored)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHeavier\u003c\/td\u003e\n            \u003ctd\u003eLighter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn general, cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions, especially where frequent regeneration is required.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – SDPF\/SCRF最小起订量 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e Minimum order quantity (MOQ) for SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur minimum order quantities vary by material type:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSilicon Carbide (SiC) material:\u003c\/strong\u003e \u003cstrong\u003e3 pieces\u003c\/strong\u003e (3pcs)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCordierite material:\u003c\/strong\u003e \u003cstrong\u003e10 pieces\u003c\/strong\u003e (10pcs)\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThese MOQs are set to ensure efficient production and coating processes. For larger volumes, we offer competitive pricing and shorter lead times. If you require a specific quantity below these MOQs, please contact our sales team to discuss possibilities.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 公司总部地址 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 如何联系我们 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"Cordierite \/ SCR Coating \/ 118x127mm","offer_id":54578209947994,"sku":null,"price":35.83,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ SCR Coating \/ 118x152mm","offer_id":54578209980762,"sku":null,"price":42.79,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 118x127mm","offer_id":54578210013530,"sku":null,"price":61.78,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 118x152mm","offer_id":54578210046298,"sku":null,"price":73.78,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 118x127mm","offer_id":54578210079066,"sku":null,"price":53.13,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 118x152mm","offer_id":54578210111834,"sku":null,"price":63.45,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 118x127mm","offer_id":54578210144602,"sku":null,"price":79.08,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 118x152mm","offer_id":54578210177370,"sku":null,"price":94.44,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/111_30aec641-e735-4836-b9e2-205849c6bdd8.jpg?v=1786677360"},{"product_id":"dpf-scrf-sic-ceramic-diesel-particulate-filter-190mm-7-48","title":"DPF\/SCRF SiC Ceramic Diesel Particulate Filter 190mm (7.48\")","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是SDPF\/SCRF --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is SDPF \/ SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eSDPF\u003c\/strong\u003e (Selective Catalytic Reduction Filter) or \u003cstrong\u003eSCRF\u003c\/strong\u003e (SCR on Filter) is an integrated after‑treatment device that combines a DPF (Diesel Particulate Filter) with an SCR (Selective Catalytic Reduction) catalyst coating on the same substrate. This configuration simultaneously removes particulate matter (soot) and reduces NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eStructure and operating principle:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe SCRF is positioned close to the engine outlet (tight‑coupled) to reach urea decomposition temperature and SCR light‑off temperature quickly, avoiding excessive NO\u003csub\u003ex\u003c\/sub\u003e emissions during cold starts.\u003c\/li\u003e\n        \u003cli\u003eUrea is injected upstream of the SCRF; the generated NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the SCR catalyst layer, while the filter walls trap soot.\u003c\/li\u003e\n        \u003cli\u003eAt low temperatures (below 200°C), urea decomposition is incomplete and NO\u003csub\u003e2\u003c\/sub\u003e conversion is limited. The tight‑coupled SCRF overcomes this by achieving faster warm‑up.\u003c\/li\u003e\n        \u003cli\u003eA downstream under‑floor SCR catalyst (with higher catalyst loading) provides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion during normal driving. Some heavy‑duty systems also include a small auxiliary SCR with an ASC (Ammonia Slip Catalyst) to control excess NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors upstream of the DOC and downstream of the SCRF are used to control urea dosing and monitor SCRF performance.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis layout (DOC + SCRF close‑coupled + under‑floor SCR) is typical for modern Euro 6 heavy‑duty diesel engines.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – SDPF和DPF之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between SDPF (SCRF) and DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eAlthough both are wall‑flow ceramic filters, SDPF (SCRF) and DPF differ significantly in design and function:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eFeature\u003c\/th\u003e\n            \u003cth\u003eSDPF \/ SCRF\u003c\/th\u003e\n            \u003cth\u003eDPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePrimary function\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSimultaneous particulate filtration and NO\u003csub\u003ex\u003c\/sub\u003e reduction (SCR)\u003c\/td\u003e\n            \u003ctd\u003eOnly particulate filtration\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains SCR catalyst (e.g., Cu‑zeolite) with precious metals\u003c\/td\u003e\n            \u003ctd\u003eTypically uncoated or only catalysed for soot oxidation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher porosity (typically \u0026gt; 50%) to allow SCR coating penetration and to maintain low backpressure\u003c\/td\u003e\n            \u003ctd\u003eLower porosity (typically 40‑50%)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea injection\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eRequires urea dosing upstream\u003c\/td\u003e\n            \u003ctd\u003eNo urea required\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eConverts NO\u003csub\u003ex\u003c\/sub\u003e to N\u003csub\u003e2\u003c\/sub\u003e using NH\u003csub\u003e3\u003c\/sub\u003e\n\u003c\/td\u003e\n            \u003ctd\u003eDoes not reduce NO\u003csub\u003ex\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6 heavy‑duty and light‑duty diesel vehicles\u003c\/td\u003e\n            \u003ctd\u003eEuro 4\/5 vehicles, or as a stand‑alone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher due to coating and complex design\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eThe key structural difference is that the SDPF\/SCRF has \u003cstrong\u003ehigher porosity\u003c\/strong\u003e to accommodate the SCR washcoat without excessively increasing backpressure.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – SDPF的示例图（根据图片用文字描述） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Example performance diagram of SDPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe following diagram illustrates the NO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency of a close‑coupled SCRF system compared to an under‑floor SCR system, based on real test data.\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eSystem\u003c\/th\u003e\n            \u003cth\u003eTemperature range\u003c\/th\u003e\n            \u003cth\u003eNO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency\u003c\/th\u003e\n            \u003cth\u003eKey remarks\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\n\u003cstrong\u003ecc‑SCRF\u003c\/strong\u003e (close‑coupled)\u003c\/td\u003e\n            \u003ctd\u003e200 – 400°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% at 250°C, exceeds 90% above 300°C\u003c\/td\u003e\n            \u003ctd\u003eFast light‑off, active during cold start and warm‑up\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUnder‑floor main SCR\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e300 – 600°C\u003c\/td\u003e\n            \u003ctd\u003eReaches ~80% only above 400°C\u003c\/td\u003e\n            \u003ctd\u003eHigher catalyst loading, but slower light‑off\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eAuxiliary small SCR (with ASC)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e200 – 450°C\u003c\/td\u003e\n            \u003ctd\u003eProvides additional NO\u003csub\u003ex\u003c\/sub\u003e conversion and ammonia slip control\u003c\/td\u003e\n            \u003ctd\u003eOften used in heavy‑duty vehicles\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eDiagram interpretation:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe cc‑SCRF (solid curve) achieves high NO\u003csub\u003ex\u003c\/sub\u003e conversion (\u0026gt;80%) already at ~250°C, while the under‑floor SCR (dashed curve) reaches the same level only above 400°C.\u003c\/li\u003e\n        \u003cli\u003eTwo urea injection points are shown: one upstream of the cc‑SCRF and a second upstream of the under‑floor SCR (for heavy‑duty applications).\u003c\/li\u003e\n        \u003cli\u003eA small auxiliary SCR is placed downstream to handle residual NH\u003csub\u003e3\u003c\/sub\u003e.\u003c\/li\u003e\n        \u003cli\u003eNO\u003csub\u003ex\u003c\/sub\u003e sensors before and after the system enable precise urea dosing and performance monitoring.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis configuration ensures optimal NO\u003csub\u003ex\u003c\/sub\u003e reduction across the entire operating range, especially during transient conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – SDPF\/SCRF 涂PT和不涂PT之间的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between Pt‑coated and uncoated SDPF\/SCRF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe coating of platinum (Pt) on the SDPF\/SCRF significantly affects performance, especially at low temperatures. Here is a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003ePt‑coated SDPF\/SCRF\u003c\/th\u003e\n            \u003cth\u003eUncoated SDPF\/SCRF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNO oxidation\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnables NO → NO\u003csub\u003e2\u003c\/sub\u003e conversion, improving low‑temperature SCR performance\u003c\/td\u003e\n            \u003ctd\u003eLimited NO oxidation; relies mainly on engine‑out NO\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eLow‑temperature activity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher activity below 250°C due to faster NH\u003csub\u003e3\u003c\/sub\u003e activation and NO\u003csub\u003e2\u003c\/sub\u003e promotion\u003c\/td\u003e\n            \u003ctd\u003eLower activity; needs higher temperature for effective SCR\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eUrea decomposition\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSlightly improved due to local heat release from oxidation reactions\u003c\/td\u003e\n            \u003ctd\u003eNo such benefit\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePassive regeneration\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEnhanced soot oxidation (due to NO\u003csub\u003e2\u003c\/sub\u003e) – lowers regeneration temperature\u003c\/td\u003e\n            \u003ctd\u003eHigher soot oxidation temperature, more active regeneration needed\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePt may suffer from sulfur poisoning and thermal ageing\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no precious metal degradation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSignificantly more expensive\u003c\/td\u003e\n            \u003ctd\u003eLower cost\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 6d, cold‑start heavy‑duty, and vehicles with frequent low‑load operation\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 without extreme cold‑start demands\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn summary, Pt coating greatly improves cold‑start NO\u003csub\u003ex\u003c\/sub\u003e reduction and passive regeneration, but adds cost and complexity. The choice depends on emission targets and operating conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 我们的SDPF\/SCRF使用的是什么SCR基材 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e Which SCR substrate material do we use?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur SDPF\/SCRF products use a \u003cstrong\u003ecopper‑based zeolite (Cu‑zeolite)\u003c\/strong\u003e as the SCR catalyst material.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey advantages of Cu‑zeolite SCR:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExcellent low‑temperature activity:\u003c\/strong\u003e Effective even below 200°C, ideal for cold‑start and low‑load conditions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh hydrothermal durability:\u003c\/strong\u003e Withstands temperatures up to 650°C without significant degradation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGood resistance to sulfur poisoning\u003c\/strong\u003e compared to iron‑based zeolites.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBroad operating window:\u003c\/strong\u003e Maintains high NO\u003csub\u003ex\u003c\/sub\u003e conversion from 200°C to 500°C.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLower precious metal content\u003c\/strong\u003e than vanadium‑based systems, reducing cost.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis Cu‑zeolite coating is applied to the cordierite or silicon carbide DPF substrate (depending on the model) to provide both particulate filtration and SCR functionality in a single unit.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – SDPF\/SCRF的主要功能和工作原理是什么？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e Main functions and working principle of SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eMain functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eParticulate filtration:\u003c\/strong\u003e Traps soot and ash particles from diesel exhaust, reducing PM emissions by \u0026gt; 90%.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e reduction:\u003c\/strong\u003e Converts nitrogen oxides (NO and NO₂) into harmless nitrogen (N₂) and water (H₂O) via selective catalytic reduction.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePassive soot oxidation:\u003c\/strong\u003e Generates NO₂ from NO (with Pt coating) to oxidise trapped soot at lower temperatures, reducing regeneration frequency.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eWorking principle (step‑by‑step):\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExhaust gas enters the SCRF\u003c\/strong\u003e – containing NO, NO₂, soot, and other gaseous pollutants.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUrea injection\u003c\/strong\u003e – AdBlue (urea‑water solution) is sprayed upstream; it decomposes into NH\u003csub\u003e3\u003c\/sub\u003e and CO₂.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNH\u003csub\u003e3\u003c\/sub\u003e mixes with exhaust\u003c\/strong\u003e and flows into the SCRF channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration\u003c\/strong\u003e – The wall‑flow structure forces the gas through the porous walls, trapping soot on the inlet channels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSCR reaction\u003c\/strong\u003e – NH\u003csub\u003e3\u003c\/sub\u003e reacts with NO\u003csub\u003ex\u003c\/sub\u003e over the Cu‑zeolite catalyst layer on the filter walls, producing N₂ and H₂O.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration\u003c\/strong\u003e – Accumulated soot is periodically burned off via passive oxidation (using NO₂) or active regeneration (raising exhaust temperature to ~600°C).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eClean gas exits\u003c\/strong\u003e – with significantly reduced particulate and NO\u003csub\u003ex\u003c\/sub\u003e emissions.\u003c\/li\u003e\n      \u003c\/ol\u003e\n      \u003cp\u003eThis integrated design saves space, reduces system complexity, and improves overall emission control efficiency compared to separate DPF + SCR units.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 堇青石材质和碳化硅的区别？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Difference between cordierite and silicon carbide materials?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are used as DPF\/SCRF substrates. Their differences are summarized below:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide (SiC)\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal expansion coefficient\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eVery low (~1.5×10⁻⁶\/℃)\u003c\/td\u003e\n            \u003ctd\u003eHigher (~4.0×10⁻⁶\/℃)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal shock resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited above 1000°C\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands high thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaximum operating temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1200°C\u003c\/td\u003e\n            \u003ctd\u003e~1600°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50% (can be tailored)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHeavier\u003c\/td\u003e\n            \u003ctd\u003eLighter\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eIn general, cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions, especially where frequent regeneration is required.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – SDPF\/SCRF最小起订量 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e Minimum order quantity (MOQ) for SDPF\/SCRF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur minimum order quantities vary by material type:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSilicon Carbide (SiC) material:\u003c\/strong\u003e \u003cstrong\u003e3 pieces\u003c\/strong\u003e (3pcs)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCordierite material:\u003c\/strong\u003e \u003cstrong\u003e10 pieces\u003c\/strong\u003e (10pcs)\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThese MOQs are set to ensure efficient production and coating processes. For larger volumes, we offer competitive pricing and shorter lead times. If you require a specific quantity below these MOQs, please contact our sales team to discuss possibilities.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 公司总部地址 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 如何联系我们 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"Cordierite \/ SCR Coating \/ 190x140mm","offer_id":54578240258394,"sku":null,"price":102.34,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ SCR Coating \/ 190x152mm","offer_id":54578240291162,"sku":null,"price":111.1,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ SCR Coating \/ 190x170mm","offer_id":54578240323930,"sku":null,"price":124.25,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 190x140mm","offer_id":54578240356698,"sku":null,"price":176.44,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 190x152mm","offer_id":54578240389466,"sku":null,"price":191.56,"currency_code":"GBP","in_stock":true},{"title":"Cordierite \/ PT + SCR Coating \/ 190x170mm","offer_id":54578240422234,"sku":null,"price":214.22,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 190x140mm","offer_id":54578240455002,"sku":null,"price":151.74,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 190x152mm","offer_id":54578240487770,"sku":null,"price":164.74,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ SCR Coating \/ 190x170mm","offer_id":54578240520538,"sku":null,"price":184.23,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 190x140mm","offer_id":54578240553306,"sku":null,"price":225.85,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 190x152mm","offer_id":54578240586074,"sku":null,"price":245.19,"currency_code":"GBP","in_stock":true},{"title":"Silicon carbide \/ PT + SCR Coating \/ 190x170mm","offer_id":54578240618842,"sku":null,"price":274.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/333_23043cb4-98a1-4601-af3e-8de8f2422c90.jpg?v=1786678189"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-198x103x254mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - 198x103x254mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"198x103x254mm \/ Silicon carbide \/ Uncoated","offer_id":54579726188890,"sku":null,"price":83.11,"currency_code":"GBP","in_stock":true},{"title":"198x103x254mm \/ Silicon carbide \/ Coated","offer_id":54579726221658,"sku":null,"price":177.56,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/11_56efb87c-f185-495d-bd22-010ceae9642a.jpg?v=1786696965"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-155x130x145mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - ⁠155x130x145mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"155x130x145mm \/ Silicon carbide \/ Uncoated","offer_id":54580071170394,"sku":null,"price":66.49,"currency_code":"GBP","in_stock":true},{"title":"155x130x145mm \/ Silicon carbide \/ Coated","offer_id":54580071203162,"sku":null,"price":142.04,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/111_bc19ac77-927b-46b6-bcf8-dbd63d3b2ba0.jpg?v=1786699088"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-182x97x152mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - ⁠182x97x152mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"⁠182x97x152mm \/ Silicon carbide \/ Uncoated","offer_id":54580330398042,"sku":null,"price":46.93,"currency_code":"GBP","in_stock":true},{"title":"⁠182x97x152mm \/ Silicon carbide \/ Coated","offer_id":54580330430810,"sku":null,"price":100.27,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/111_341ff680-5ce8-4b0b-b73a-0cd824e261fc.jpg?v=1786700802"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-150x115x150mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - ⁠150x115x150mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"150x115x150mm \/ Silicon carbide \/ Uncoated","offer_id":54580439187802,"sku":null,"price":46.93,"currency_code":"GBP","in_stock":true},{"title":"150x115x150mm \/ Silicon carbide \/ Coated","offer_id":54580439220570,"sku":null,"price":100.27,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/333_9b9dd349-1c21-46f9-8bf5-1039e9e07a5e.jpg?v=1786758477"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-185x135x140mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - ⁠185x135x140mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"⁠185x135x140mm \/ Silicon carbide \/ Uncoated","offer_id":54586872496474,"sku":null,"price":66.49,"currency_code":"GBP","in_stock":true},{"title":"⁠185x135x140mm \/ Silicon carbide \/ Coated","offer_id":54586872529242,"sku":null,"price":142.04,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/111_93a4868f-af61-4907-ac7d-d640c0e36441.jpg?v=1786759497"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-200x148x160mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - ⁠200x148x160mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"200x148x160mm \/ Silicon carbide \/ Uncoated","offer_id":54586995671386,"sku":null,"price":82.13,"currency_code":"GBP","in_stock":true},{"title":"200x148x160mm \/ Silicon carbide \/ Coated","offer_id":54586995704154,"sku":null,"price":175.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/111_86665c96-3604-4ea9-855c-cc7eac243448.jpg?v=1786760663"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-197x125x166mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - ⁠197x100x200mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"197x100x200mm \/ Silicon carbide \/ Uncoated","offer_id":54587005927770,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true},{"title":"197x100x200mm \/ Silicon carbide \/ Coated","offer_id":54587005960538,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/111_05864f6a-cfed-4e7d-b7f2-f3166a772b43.jpg?v=1786762550"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-143x143x148mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - ⁠143x143x148mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"143x143x148mm \/ Silicon carbide \/ Uncoated","offer_id":54587097612634,"sku":null,"price":60.62,"currency_code":"GBP","in_stock":true},{"title":"143x143x148mm \/ Silicon carbide \/ Coated","offer_id":54587097645402,"sku":null,"price":129.51,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/111_f54c0331-cea1-4a83-aceb-2688b2afb2a8.jpg?v=1786763599"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-160x140x152mm","title":"⁠Sic \/ Ceramic DPF (Diesel Particulate Filter) - 160x140x152mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"160x140x152mm \/ Silicon carbide \/ Uncoated","offer_id":54587506884954,"sku":null,"price":50.84,"currency_code":"GBP","in_stock":true},{"title":"160x140x152mm \/ Silicon carbide \/ Coated","offer_id":54587506917722,"sku":null,"price":108.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/111_3fc970ca-336a-451d-ae09-43d0fa57562a.jpg?v=1786765119"},{"product_id":"sic-ceramic-dpf-diesel-particulate-filter-182x140x152mm","title":"Sic \/ Ceramic DPF (Diesel Particulate Filter) - ⁠182x140x152mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – 什么是柴油车DPF？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a diesel DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003eDPF (Diesel Particulate Filter)\u003c\/strong\u003e is an exhaust after‑treatment device installed in diesel vehicles to capture and store particulate matter (soot) from the exhaust gas. It is a ceramic wall‑flow filter (typically made of cordierite or silicon carbide) that physically traps particles while allowing exhaust gases to pass through.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Functions:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReduces particulate emissions (PM) by over 90%, meeting Euro 4, 5, and 6 standards.\u003c\/li\u003e\n        \u003cli\u003ePrevents soot from being released into the atmosphere, improving air quality.\u003c\/li\u003e\n        \u003cli\u003eWorks in conjunction with DOC (Diesel Oxidation Catalyst) to enable passive and active regeneration.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eDPFs are mandatory for modern diesel vehicles to comply with strict emission regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 堇青石DPF和碳化硅DPF的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Difference between cordierite DPF and silicon carbide DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth cordierite and silicon carbide (SiC) are common ceramic materials used for DPF substrates. The table below compares their key properties:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCordierite DPF\u003c\/th\u003e\n            \u003cth\u003eSilicon Carbide DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e2MgO·2Al₂O₃·5SiO₂\u003c\/td\u003e\n            \u003ctd\u003eSiC (silicon carbide)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLow (1–2 W\/mK)\u003c\/td\u003e\n            \u003ctd\u003eHigh (~15–20 W\/mK)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but limited at very high temperatures\u003c\/td\u003e\n            \u003ctd\u003eExcellent, withstands extreme thermal cycling\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e~1400°C\u003c\/td\u003e\n            \u003ctd\u003e~2700°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003ePorosity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n            \u003ctd\u003eTypically 40–50%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n            \u003ctd\u003eExcellent\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower\u003c\/td\u003e\n            \u003ctd\u003eHigher\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePassenger cars, light‑duty\u003c\/td\u003e\n            \u003ctd\u003eHeavy‑duty, high‑performance, and regeneration‑intensive applications\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003e\u003cstrong\u003eKey Takeaway:\u003c\/strong\u003e Cordierite is cost‑effective and suitable for standard applications, while SiC offers superior thermal durability and is preferred for heavy‑duty and high‑temperature conditions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 柴油车DPF的工作原理 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e Working principle of diesel DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe DPF operates on the \u003cstrong\u003ewall‑flow filtration\u003c\/strong\u003e principle:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e The honeycomb structure has alternating channels plugged at the ends. Exhaust gas enters the inlet channels and is forced through the porous ceramic walls into the adjacent outlet channels. Soot particles larger than the pore size are trapped on the wall surface and inside the pores.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRegeneration:\u003c\/strong\u003e As soot accumulates, backpressure increases. The filter must be regenerated to burn off the trapped soot:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003ePassive regeneration:\u003c\/strong\u003e Occurs when exhaust temperatures exceed ~350°C, especially with the help of NO₂ from the upstream DOC.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eActive regeneration:\u003c\/strong\u003e The engine ECU raises exhaust temperatures (by post‑injection or other means) to ~600°C to oxidise the soot.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis cycle ensures low backpressure and high filtration efficiency over the life of the DPF.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 柴油车DPF涂层和不涂层的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Difference between coated and uncoated DPF?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe main difference between a \u003cstrong\u003ecoated\u003c\/strong\u003e and an \u003cstrong\u003euncoated\u003c\/strong\u003e DPF is the presence of a catalytic washcoat. Here’s a detailed comparison:\u003c\/p\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCoated DPF\u003c\/th\u003e\n            \u003cth\u003eUncoated DPF\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCatalytic Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eContains precious metals (Pt, Pd) and promoters\u003c\/td\u003e\n            \u003ctd\u003eNone (pure ceramic)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSoot Oxidation Temperature\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (~350–400°C) – easier passive regeneration\u003c\/td\u003e\n            \u003ctd\u003eHigher (~500–600°C) – harder to regenerate passively\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eConversion of CO \u0026amp; HC\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCan also oxidise CO and HC\u003c\/td\u003e\n            \u003ctd\u003eOnly filters soot; no catalytic conversion\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCoating may degrade over time\u003c\/td\u003e\n            \u003ctd\u003eMore robust, no coating wear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eMore expensive\u003c\/td\u003e\n            \u003ctd\u003eLess expensive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Use\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEuro 5\/6 passenger and commercial vehicles\u003c\/td\u003e\n            \u003ctd\u003eOlder designs or as a standalone filter\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eCoated DPFs are preferred for modern vehicles because they regenerate more easily and provide additional emission benefits.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 包括什么 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is included in the package?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eEach order includes:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x DPF (Diesel Particulate Filter)\u003c\/strong\u003e – fully assembled and ready for installation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1 x Intumescent Mounting Mat (insulating mat)\u003c\/strong\u003e – provided as a complimentary extra to ensure a secure and thermally insulated fit within the housing.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe mounting mat helps to absorb vibration, accommodate thermal expansion, and prevent exhaust gas bypass. It is essential for proper installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – DPF性能参数（完全依照图片表格，英文） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e DPF performance parameters\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eCategory\u003c\/th\u003e\n            \u003cth\u003eSub‑item\u003c\/th\u003e\n            \u003cth\u003eStandard\u003c\/th\u003e\n            \u003cth\u003eMethod\u003c\/th\u003e\n            \u003cth\u003eResult\u003c\/th\u003e\n            \u003cth\u003eVerdict\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003c!-- 外观 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd\u003eInternal cracks\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eLight inspection\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eChipping \/ fracture\u003c\/td\u003e\n            \u003ctd\u003eNot allowed\u003c\/td\u003e\n            \u003ctd\u003eVisual\u003c\/td\u003e\n            \u003ctd\u003eConforms\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 尺寸 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003eLength (OD)\u003c\/td\u003e\n            \u003ctd\u003e267±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e267.16 267.50 266.82 266.58\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWidth\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n            \u003ctd\u003e\/\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHeight\u003c\/td\u003e\n            \u003ctd\u003e254±1.5mm\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e254.26 254.42 253.90 253.68\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 其它 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eOthers\u003c\/td\u003e\n            \u003ctd\u003ePerpendicularity\u003c\/td\u003e\n            \u003ctd\u003e≤1.5mm\u003c\/td\u003e\n            \u003ctd\u003eSquare ruler\u003c\/td\u003e\n            \u003ctd\u003e0.9\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMesh count\u003c\/td\u003e\n            \u003ctd\u003e200±10\u003c\/td\u003e\n            \u003ctd\u003eDial caliper\u003c\/td\u003e\n            \u003ctd\u003e194\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗热震性 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eThermal shock resistance\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e500℃ hold 30 min, quickly remove, cool at room temp for 30 min, repeat 3 times, no cracks\u003c\/td\u003e\n            \u003ctd\u003eMuffle furnace\u003c\/td\u003e\n            \u003ctd\u003ePass\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 抗压强度 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"2\"\u003eCompressive strength\u003c\/td\u003e\n            \u003ctd\u003eA‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥3.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e5.61\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eB‑axis\u003c\/td\u003e\n            \u003ctd\u003e≥1.5MPa\u003c\/td\u003e\n            \u003ctd\u003eCompression tester\u003c\/td\u003e\n            \u003ctd\u003e2.23\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 热膨胀系数 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCoefficient of thermal expansion (25℃‑800℃)\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤1.5×10⁻⁶\/℃\u003c\/td\u003e\n            \u003ctd\u003eThermal expansion analyzer\u003c\/td\u003e\n            \u003ctd\u003e1.43\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 吸水率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eWater absorption\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤30%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e38.06%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 显气孔率 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eApparent porosity\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤45%\u003c\/td\u003e\n            \u003ctd\u003eElectronic scale\u003c\/td\u003e\n            \u003ctd\u003e47.04%\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 堇青石主晶相含量 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eCordierite main crystal phase content\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e≤90\u003c\/td\u003e\n            \u003ctd\u003eXRD\u003c\/td\u003e\n            \u003ctd\u003e95\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 化学成分 --\u003e\n          \u003ctr\u003e\n            \u003ctd rowspan=\"3\"\u003eChemical composition\u003c\/td\u003e\n            \u003ctd\u003eAl₂O₃\u003c\/td\u003e\n            \u003ctd\u003e35.4±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e35.47\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eMgO\u003c\/td\u003e\n            \u003ctd\u003e13.5±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e14.01\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eSiO₂\u003c\/td\u003e\n            \u003ctd\u003e49.7±1.5\u003c\/td\u003e\n            \u003ctd\u003eChemical analysis\u003c\/td\u003e\n            \u003ctd\u003e48.85\u003c\/td\u003e\n            \u003ctd\u003eOK\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003c!-- 综合判定 --\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eOverall judgment\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n            \u003ctd\u003eQualified\u003c\/td\u003e\n            \u003ctd\u003e—\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 安装DPF指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for DPF\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eProper installation is critical for DPF performance and longevity. Follow these guidelines:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBefore You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePark the vehicle on a level surface and secure it with jack stands.\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle’s service manual for specific torque values and component locations.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old DPF (if applicable)\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eRemove heat shields and brackets for access.\u003c\/li\u003e\n        \u003cli\u003eUnplug O₂ sensors and pressure sensors connected to the filter.\u003c\/li\u003e\n        \u003cli\u003eUnbolt flanged connections or cut welded pipes, then carefully remove the old unit.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eClean the pipe ends with a wire brush to remove rust and debris.\u003c\/li\u003e\n        \u003cli\u003eDeburr cut edges if necessary.\u003c\/li\u003e\n        \u003cli\u003eCheck pipe roundness and fit new gaskets.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Install the New DPF\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePosition the DPF with the flow direction arrow pointing toward the rear.\u003c\/li\u003e\n        \u003cli\u003eUse the provided intumescent mounting mat to wrap the DPF (if not already pre‑installed) to ensure a tight seal in the housing.\u003c\/li\u003e\n        \u003cli\u003eInsert the DPF into the housing and secure it with brackets or clamps.\u003c\/li\u003e\n        \u003cli\u003eFor weld‑on units, tack‑weld in several places, then fully weld using stainless steel filler.\u003c\/li\u003e\n        \u003cli\u003eReconnect all sensors (pressure, temperature, O₂) and ensure wiring is properly routed.\u003c\/li\u003e\n        \u003cli\u003eReinstall heat shields and underbody covers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Post‑Installation Testing\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eReconnect the battery.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all joints.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach operating temperature and monitor the DPF’s performance via diagnostic tools (backpressure, temperature, and regeneration status).\u003c\/li\u003e\n        \u003cli\u003ePerform a forced regeneration (if the vehicle supports it) to verify correct function.\u003c\/li\u003e\n        \u003cli\u003eTake a test drive to confirm no warning lights appear.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e\n        • DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e\n        • Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e\n        • Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e\n        • Professional installation is strongly recommended.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 发货\/运输时间（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 联系我们（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 公司总部地址（保持不变） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"182x140x152mm \/ Silicon carbide \/ Uncoated","offer_id":54587554726234,"sku":null,"price":62.58,"currency_code":"GBP","in_stock":true},{"title":"182x140x152mm \/ Silicon carbide \/ Coated","offer_id":54587554759002,"sku":null,"price":133.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/555_9e9d57f8-0961-4214-8292-6095468778fb.jpg?v=1786765910"}],"url":"https:\/\/www.svipcat.com\/collections\/dpf-%e5%85%a8%e9%83%a8%e5%88%86%e7%bb%84.oembed?page=3","provider":"SVIPCAT Store","version":"1.0","type":"link"}