{"title":"Vehicle size","description":"","products":[{"product_id":"catalytic-converter-for-bmw-2005-e83","title":"Metal Catalyst 400 Cpsi Durability with Precious MetalCoating Total Length 110 mm with Metal Housing","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  }\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 – 陶瓷与金属基材的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is the difference between ceramic and metal substrates?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eCeramic and metal substrates are the two primary carrier materials used in catalytic converters. Here is a detailed comparison:\u003c\/p\u003e\n\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProperty\u003c\/th\u003e\n            \u003cth\u003eCeramic Substrate\u003c\/th\u003e\n            \u003cth\u003eMetal Substrate\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMaterial Composition\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCordierite (2MgO·2Al₂O₃·5SiO₂) or Silicon Carbide (SiC)[reference:0]\u003c\/td\u003e\n            \u003ctd\u003eFe-Cr-Al alloy (ferritic stainless steel, e.g. FeCr21Al6)[reference:1]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWall Thickness\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003e\u0026gt; 0.10 mm[reference:2]\u003c\/td\u003e\n            \u003ctd\u003e~ 0.03 mm (much thinner)[reference:3]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCell Density (CPSI)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eTypically ~400 CPSI[reference:4]\u003c\/td\u003e\n            \u003ctd\u003e25 – 1200 CPSI (wider range)[reference:5]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eGeometric Surface Area\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower[reference:6]\u003c\/td\u003e\n            \u003ctd\u003eHigher[reference:7]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eMechanical Strength\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (brittle, prone to cracking)[reference:8]\u003c\/td\u003e\n            \u003ctd\u003eHigh (resistant to vibration and impact)[reference:9]\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[reference:10]\u003c\/td\u003e\n            \u003ctd\u003eHigh[reference:11]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHeavier (1,500-2,000g)[reference:12]\u003c\/td\u003e\n            \u003ctd\u003eLighter (800-1,200g, 40-50% less)[reference:13]\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 (1-3 W\/mK)[reference:14]\u003c\/td\u003e\n            \u003ctd\u003eHigh (100-200× faster than ceramic)[reference:15]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eLight-off Time (warm-up)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSlower (2-3 minutes)[reference:16]\u003c\/td\u003e\n            \u003ctd\u003eFaster (30-45 seconds)[reference:17]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eBack Pressure\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher[reference:18]\u003c\/td\u003e\n            \u003ctd\u003eLower[reference:19]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eHeat Capacity\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigh[reference:20]\u003c\/td\u003e\n            \u003ctd\u003eLow[reference:21]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTemperature Tolerance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eUp to ~1,000-1,200°C[reference:22]\u003c\/td\u003e\n            \u003ctd\u003eUp to 1,300-1,400°C[reference:23]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCell Shape\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSquare cells[reference:24]\u003c\/td\u003e\n            \u003ctd\u003eSinusoidal channels[reference:25]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower (cost-effective at volume)[reference:26]\u003c\/td\u003e\n            \u003ctd\u003eHigher[reference:27]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eShape Flexibility\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLimited (fixed tooling required)\u003c\/td\u003e\n            \u003ctd\u003eHighly flexible (easy customization)[reference:28]\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n\n      \u003cp\u003e\u003cstrong\u003eSummary:\u003c\/strong\u003e Ceramic substrates are cost-effective and perform well at low space velocities[reference:29], but are brittle and heavier. Metal substrates offer superior durability, faster warm-up, lower back pressure, and greater design flexibility[reference:30], though at a higher cost[reference:31]. The choice depends on your specific application requirements.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 陶瓷与金属催化剂的区别 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e What is the difference between ceramic and metal catalysts?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eBoth ceramic and metal catalysts serve the same fundamental purpose — converting harmful exhaust gases (CO, HC, NOx) into harmless substances through catalytic reactions. However, they differ significantly in performance characteristics:\u003c\/p\u003e\n\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003ePerformance Metric\u003c\/th\u003e\n            \u003cth\u003eCeramic Catalyst\u003c\/th\u003e\n            \u003cth\u003eMetal Catalyst\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eLow Space Velocity Performance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eBetter conversions (especially for HC and CO)[reference:32]\u003c\/td\u003e\n            \u003ctd\u003eLower conversions at low space velocities[reference:33]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eHigh Space Velocity Performance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eLower conversions[reference:34]\u003c\/td\u003e\n            \u003ctd\u003eBetter conversions (larger surface area)[reference:35]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCO Conversion Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGenerally high, can be lower at high space velocities[reference:36]\u003c\/td\u003e\n            \u003ctd\u003eUp to 98.6% at high temperatures[reference:37]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eHC Conversion Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eUp to 98.6%[reference:38]\u003c\/td\u003e\n            \u003ctd\u003e~61.3%[reference:39]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eNOx Reduction Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eUp to 87.2%[reference:40]\u003c\/td\u003e\n            \u003ctd\u003e~81.1%[reference:41]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCold-Start Performance\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eSlower to reach operating temperature[reference:42]\u003c\/td\u003e\n            \u003ctd\u003eFaster warm-up (30-45 seconds)[reference:43]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGood, but brittle — prone to cracking from impact[reference:44]\u003c\/td\u003e\n            \u003ctd\u003eExcellent — highly resistant to vibration and thermal shock[reference:45]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eThermal Shock Vulnerability\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher tendency towards thermal shock[reference:46]\u003c\/td\u003e\n            \u003ctd\u003eLower tendency — more tolerant of temperature extremes[reference:47]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSubstrate Length (for same performance)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eDouble the length of metal substrate[reference:48]\u003c\/td\u003e\n            \u003ctd\u003eHalf the length of ceramic substrate[reference:49]\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eTypical Application\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eOBDII vehicles, standard passenger cars[reference:50]\u003c\/td\u003e\n            \u003ctd\u003eOBDI applications, performance vehicles, diesel[reference:51]\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n\n      \u003cp\u003e\u003cstrong\u003eKey Takeaways:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCeramic catalysts\u003c\/strong\u003e excel at low space velocities (e.g., idle\/low-load conditions) and offer excellent HC conversion[reference:52]. They are more cost-effective for high-volume production[reference:53].\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMetal catalysts\u003c\/strong\u003e outperform at high space velocities (e.g., high-speed driving) due to larger surface area and better mass transfer characteristics[reference:54][reference:55]. They warm up faster, resist thermal shock better, and offer greater durability[reference:56], but come at a higher cost[reference:57].\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – 原Q3（催化转化器工作原理） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e How does a catalytic converter work?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003ethree-way catalytic converter\u003c\/strong\u003e (TWC) simultaneously converts three primary harmful exhaust pollutants into less harmful substances through oxidation and reduction reactions:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCarbon Monoxide (CO)\u003c\/strong\u003e → oxidized into Carbon Dioxide (CO₂)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUnburned Hydrocarbons (HC)\u003c\/strong\u003e → oxidized into Carbon Dioxide (CO₂) and Water (H₂O)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNitrogen Oxides (NOx)\u003c\/strong\u003e → reduced into Nitrogen (N₂) and Oxygen (O₂)\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe substrate (ceramic or metal) is coated with a \"washcoat\" containing precious metal catalysts (platinum, palladium, rhodium). As exhaust gases pass through the honeycomb channels at high temperature (around 300°C), these metals catalyze the chemical reactions that convert approximately 98% of harmful emissions into harmless gases[reference:58]. This process is essential for meeting global emissions standards and protecting air quality.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 原Q4（排放标准） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Does this meet Euro 3-6 emissions standards?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYes. Our metal and ceramic catalytic converter substrates are designed to comply with \u003cstrong\u003eEuro 3, Euro 4, Euro 5, and Euro 6\u003c\/strong\u003e emissions standards. When properly installed on a vehicle that is otherwise in good mechanical condition, our substrates support the vehicle's ability to meet the emissions limits for which it was originally certified. Euro 3 was introduced in 2000, with each subsequent standard imposing stricter limits — our substrates are engineered to meet the requirements across this range.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Emissions compliance depends on the complete vehicle system, not just the catalytic converter. Proper engine tuning, oxygen sensor function, and overall engine health are also critical factors.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 原Q5（质保） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e What is your warranty policy?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur warranty policy differs by product type:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCeramic Muffler Cores\u003c\/strong\u003e — No warranty provided. These are mechanical components subject to wear and external factors.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCatalytic Converter Substrates (Ceramic or Metal)\u003c\/strong\u003e — Covered by a \u003cstrong\u003e2‑year \/ 50,000 km (approximately 31,000 miles) warranty\u003c\/strong\u003e against manufacturing defects. This warranty covers the substrate structure and catalytic coating integrity under normal use conditions.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe warranty does not cover damage caused by improper installation, engine misfire, use of leaded fuel, physical impact damage, or contamination from oil\/coolant. Please retain your purchase receipt and installation records for warranty claims.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – 通用催化转化器安装指南 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e Universal metal catalytic converter installation guide\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003eProduct:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.svipcat.com\/products\/universal-metal-catalytic-converter-400-cpsi-total-length-250mm\" target=\"_blank\"\u003eUniversal Metal Catalytic Converter – 400 CPSI, Total Length 250mm\u003c\/a\u003e\u003c\/p\u003e\n\n      \u003cp\u003eThis universal metal catalytic converter is designed for weld‑on installation[reference:59]. Professional installation by a qualified exhaust technician is strongly recommended. Follow these step‑by‑step guidelines:\u003c\/p\u003e\n\n      \u003cp\u003e\u003cstrong\u003e⚠️ Before You Begin:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eEnsure the vehicle is parked on a level surface and securely supported[reference:60].\u003c\/li\u003e\n        \u003cli\u003eAllow the exhaust system to cool completely before starting work[reference:61].\u003c\/li\u003e\n        \u003cli\u003eDisconnect the negative battery terminal to prevent electrical shorts[reference:62].\u003c\/li\u003e\n        \u003cli\u003eSpray mounting bolts with penetrating oil a few hours ahead to ease removal[reference:63].\u003c\/li\u003e\n        \u003cli\u003eRefer to your vehicle's official service manual for detailed, model‑specific procedures[reference:64].\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 1: Remove the Old Catalytic Converter\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003eLocate the existing catalytic converter in the exhaust system.\u003c\/li\u003e\n        \u003cli\u003eRemove any heat shields or brackets that may be in the way.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the oxygen sensors (O₂ sensors) from the old converter. Take care not to damage the sensor wiring.\u003c\/li\u003e\n        \u003cli\u003eUnbolt the flanged connections at both ends of the converter. If the bolts are seized, apply additional penetrating oil and allow it to soak.\u003c\/li\u003e\n        \u003cli\u003eCarefully remove the old catalytic converter assembly from the vehicle[reference:65].\u003c\/li\u003e\n      \u003c\/ol\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 2: Prepare the Exhaust Pipes\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003eUse a wire brush or sandpaper to thoroughly clean any rust, carbon deposits, or old gasket material from the exposed exhaust pipe ends and flanges[reference:66].\u003c\/li\u003e\n        \u003cli\u003eMeasure and mark the cutting points on the exhaust pipes to match the new converter's dimensions.\u003c\/li\u003e\n        \u003cli\u003eCut the pipes as needed using an appropriate cutting tool (e.g., reciprocating saw or exhaust pipe cutter).\u003c\/li\u003e\n        \u003cli\u003eDeburr the cut edges to ensure a clean, smooth surface for welding.\u003c\/li\u003e\n      \u003c\/ol\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 3: Position the New Converter\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003ePosition the new universal metal catalytic converter in place[reference:67].\u003c\/li\u003e\n        \u003cli\u003eEnsure the converter is oriented correctly — check for any flow direction arrows marked on the unit.\u003c\/li\u003e\n        \u003cli\u003eConfirm that the converter is properly aligned with the exhaust system and that all hanger brackets align with the vehicle's mounting points[reference:68].\u003c\/li\u003e\n        \u003cli\u003eUse jack stands to support the converter at the correct height during fitting[reference:69].\u003c\/li\u003e\n      \u003c\/ol\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 4: Weld the Converter in Place\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003eTack weld the converter at multiple points to secure its position before final welding.\u003c\/li\u003e\n        \u003cli\u003ePerform full welds around the entire circumference of both the inlet and outlet connections[reference:70].\u003c\/li\u003e\n        \u003cli\u003eUse appropriate welding techniques and filler material (stainless steel wire) to prevent corrosion[reference:71].\u003c\/li\u003e\n        \u003cli\u003eAllow the welds to cool slowly to prevent warping or stress fractures.\u003c\/li\u003e\n        \u003cli\u003eIf using clamps instead of welding, ensure all clamps are tightened to the manufacturer's torque specifications.\u003c\/li\u003e\n      \u003c\/ol\u003e\n\n      \u003cp\u003e\u003cstrong\u003eStep 5: Reinstall Components and Test\u003c\/strong\u003e\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003eReinstall any heat shields or brackets that were removed.\u003c\/li\u003e\n        \u003cli\u003eReconnect the oxygen sensors to the new converter[reference:72]. Ensure the sensors are properly seated and the wiring is secure.\u003c\/li\u003e\n        \u003cli\u003eCheck that all hanger rods are centered in the isolators[reference:73].\u003c\/li\u003e\n        \u003cli\u003eReconnect the negative battery terminal.\u003c\/li\u003e\n        \u003cli\u003eStart the engine and check for exhaust leaks around all welded and bolted connections.\u003c\/li\u003e\n        \u003cli\u003eAllow the engine to reach normal operating temperature and verify that the check engine light remains off.\u003c\/li\u003e\n        \u003cli\u003eTake a short test drive to confirm proper function and listen for any unusual noises.\u003c\/li\u003e\n      \u003c\/ol\u003e\n\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant Safety \u0026amp; Compliance Notes:\u003c\/strong\u003e\u003cbr\u003e\n        • All welding must be performed by a qualified technician to maintain the integrity of the exhaust system[reference:74].\u003cbr\u003e\n        • Improper installation may damage the substrate, reduce performance, void the warranty, and create safety hazards.\u003cbr\u003e\n        • Ensure the replacement converter is the correct type for your vehicle to avoid adverse effects on performance or emission control[reference:75].\u003cbr\u003e\n        • For vehicles registered in California or other CARB-restricted states, verify that the converter meets applicable CARB compliance requirements[reference:76].\u003cbr\u003e\n        • Always follow your vehicle manufacturer's service procedures. This guide provides general instructions only[reference:77].\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 – 原Q8（发货） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\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!-- Q8 – 原Q9（联系我们） --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\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!-- Q9 – 原Q10（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\u003c\/div\u003e","brand":"SVIPCAT","offers":[{"title":"Ceramic \/ 50.8 x 50.8 mm \/ (2.0 x 2.0 in) \/ 110 x 100 mm","offer_id":51888505454938,"sku":null,"price":100.22,"currency_code":"GBP","in_stock":true},{"title":"Ceramic \/ 50.8 x 50.8 mm \/ (2.0 x 2.0 in) \/ 110 x 120 mm","offer_id":54402609217882,"sku":null,"price":110.89,"currency_code":"GBP","in_stock":true},{"title":"Ceramic \/ 50.8 x 50.8 mm \/ (2.0 x 2.0 in) \/ 110 x 130 mm","offer_id":54402609250650,"sku":null,"price":130.89,"currency_code":"GBP","in_stock":true},{"title":"Ceramic \/ 63.5 x 63.5 mm \/ (2.5 x 2.5 in) \/ 110 x 100 mm","offer_id":54402609283418,"sku":null,"price":100.22,"currency_code":"GBP","in_stock":true},{"title":"Ceramic \/ 63.5 x 63.5 mm \/ (2.5 x 2.5 in) \/ 110 x 120 mm","offer_id":54402609316186,"sku":null,"price":110.89,"currency_code":"GBP","in_stock":true},{"title":"Ceramic \/ 63.5 x 63.5 mm \/ (2.5 x 2.5 in) \/ 110 x 130 mm","offer_id":54402609348954,"sku":null,"price":130.89,"currency_code":"GBP","in_stock":true},{"title":"Ceramic \/ 76.2 x 76.2 mm \/ (3.0 x 3.0 in) \/ 110 x 100 mm","offer_id":54402609381722,"sku":null,"price":100.22,"currency_code":"GBP","in_stock":true},{"title":"Ceramic \/ 76.2 x 76.2 mm \/ (3.0 x 3.0 in) \/ 110 x 120 mm","offer_id":54402609414490,"sku":null,"price":110.89,"currency_code":"GBP","in_stock":true},{"title":"Ceramic \/ 76.2 x 76.2 mm \/ (3.0 x 3.0 in) \/ 110 x 130 mm","offer_id":54402609447258,"sku":null,"price":130.89,"currency_code":"GBP","in_stock":true},{"title":"Ceramic \/ 88.9 x 88.9 mm \/ (3.5 x 3.5 in) \/ 110 x 100 mm","offer_id":54402609480026,"sku":null,"price":100.22,"currency_code":"GBP","in_stock":true},{"title":"Ceramic \/ 88.9 x 88.9 mm \/ (3.5 x 3.5 in) \/ 110 x 120 mm","offer_id":54402609512794,"sku":null,"price":110.89,"currency_code":"GBP","in_stock":true},{"title":"Ceramic \/ 88.9 x 88.9 mm \/ (3.5 x 3.5 in) \/ 110 x 130 mm","offer_id":54402609545562,"sku":null,"price":130.89,"currency_code":"GBP","in_stock":true},{"title":"Metal \/ 50.8 x 50.8 mm \/ (2.0 x 2.0 in) \/ 110 x 100 mm","offer_id":54402609578330,"sku":null,"price":109.24,"currency_code":"GBP","in_stock":true},{"title":"Metal \/ 50.8 x 50.8 mm \/ (2.0 x 2.0 in) \/ 110 x 120 mm","offer_id":54402609611098,"sku":null,"price":135.16,"currency_code":"GBP","in_stock":true},{"title":"Metal \/ 50.8 x 50.8 mm \/ (2.0 x 2.0 in) \/ 110 x 130 mm","offer_id":54402609643866,"sku":null,"price":135.16,"currency_code":"GBP","in_stock":true},{"title":"Metal \/ 63.5 x 63.5 mm \/ (2.5 x 2.5 in) \/ 110 x 100 mm","offer_id":54402609676634,"sku":null,"price":109.24,"currency_code":"GBP","in_stock":true},{"title":"Metal \/ 63.5 x 63.5 mm \/ (2.5 x 2.5 in) \/ 110 x 120 mm","offer_id":54402609709402,"sku":null,"price":135.16,"currency_code":"GBP","in_stock":true},{"title":"Metal \/ 63.5 x 63.5 mm \/ (2.5 x 2.5 in) \/ 110 x 130 mm","offer_id":54402609742170,"sku":null,"price":135.16,"currency_code":"GBP","in_stock":true},{"title":"Metal \/ 76.2 x 76.2 mm \/ (3.0 x 3.0 in) \/ 110 x 100 mm","offer_id":54402609774938,"sku":null,"price":109.24,"currency_code":"GBP","in_stock":true},{"title":"Metal \/ 76.2 x 76.2 mm \/ (3.0 x 3.0 in) \/ 110 x 120 mm","offer_id":54402609807706,"sku":null,"price":135.16,"currency_code":"GBP","in_stock":true},{"title":"Metal \/ 76.2 x 76.2 mm \/ (3.0 x 3.0 in) \/ 110 x 130 mm","offer_id":54402609840474,"sku":null,"price":135.16,"currency_code":"GBP","in_stock":true},{"title":"Metal \/ 88.9 x 88.9 mm \/ (3.5 x 3.5 in) \/ 110 x 100 mm","offer_id":54402609873242,"sku":null,"price":109.24,"currency_code":"GBP","in_stock":true},{"title":"Metal \/ 88.9 x 88.9 mm \/ (3.5 x 3.5 in) \/ 110 x 120 mm","offer_id":54402609906010,"sku":null,"price":135.16,"currency_code":"GBP","in_stock":true},{"title":"Metal \/ 88.9 x 88.9 mm \/ (3.5 x 3.5 in) \/ 110 x 130 mm","offer_id":54402609938778,"sku":null,"price":135.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/zong_99dcfe05-789b-4c1a-9576-be782dba974e.jpg?v=1783581397"},{"product_id":"euro-6-cordierite-dpf-1-pc-190-5-x-152-4-mm-1-pc-228-x-127-mm","title":"Euro 6 Cordierite DPF  1 pc: 190.5 x 152.4 mm+1 pc: 228 x 127 mm","description":"\u003cp\u003eProduct Includes\u003c\/p\u003e\n\u003cp\u003e1 pc: 190.5 x 152.4 mm\u003c\/p\u003e\n\u003cp\u003e1 pc: 228 x 127 mm\u003c\/p\u003e\n\u003cp\u003eAnd each DPF comes with thermal insulation\u003c\/p\u003e\n\u003cp\u003eShipping time is approximately 7-9 days.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eShipping FedEx\u003c\/p\u003e","brand":"SVIPCAT Store","offers":[{"title":"1pc：190.5 x 152.4 mm+1 pc: 228 x 127 mm \/ Euro 6","offer_id":52024132403546,"sku":null,"price":112.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/DPF_6112ed2d-82e0-412d-be19-93a64cb20180.jpg?v=1756260264"},{"product_id":"high-quality","title":"High quality Silicon carbide DPF filter for BMW 118 d year 2009 engine D\/N47D20C New repacement kit","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1PCS","offer_id":54476214698330,"sku":null,"price":46.04,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/1_d70362d0-c790-4942-9062-bc6416ce2c6d.jpg?v=1785123113"},{"product_id":"dpf-retrofit-for-bmw-f11-3-0d-190kw-square-round-shape-high-temp-resistance-oem-fitment","title":"DPF Retrofit for BMW F11 3.0d 190kW  High Temp Resistant Direct OE Replacement Fitment","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1PCS","offer_id":54477346505050,"sku":null,"price":60.11,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/11_f0205d42-96e3-459f-ac7c-5424724ff169.jpg?v=1785139961"},{"product_id":"silicon-carbide-dpf-diesel-particulate-filter-for-audi-q5-3-0-tdi-176kw-engine-effective-black-smoke-soot-capture-exhaust-aftermarket-filter","title":"Silicon Carbide DPF Diesel Particulate Filter FOR Audi Q5 3.0 TDI 176kW Engine, Effective Black Smoke \u0026 Soot Capture Exhaust Aftermarket Filter","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54477380682074,"sku":null,"price":76.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/441.jpg?v=1785141105"},{"product_id":"for-bmw-e70-x5-35d-dpf-filter-18308512287-usa-model-diesel-particulate-replacement","title":"For BMW E70 X5 35d DPF Filter 18308512287 USA Model Diesel Particulate Replacement","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1PCS","offer_id":54477411058010,"sku":null,"price":59.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/11_f6cb7012-6027-4cbe-8c3d-2bab600a51ed.jpg?v=1785142344"},{"product_id":"kia-seltos-1-6tdi-dpf-filter-genuine-diesel-particulate-cleaner-replace-oem-quality-fast-ship","title":"For Kia Seltos 1.6TDI DPF Filter Genuine Diesel Particulate Cleaner Replace OEM Quality Fast Ship","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1PCS","offer_id":54477529514330,"sku":null,"price":59.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/111_bd737e48-e561-4a71-8576-eddafd06f429.jpg?v=1785143941"},{"product_id":"high-temperature-resistant-sic-diesel-particulate-filter-oe-1127719303001a-fits-renault-kadjar-1-6-dci-engine-exhaust-emission-purification","title":"High Temperature Resistant SiC Diesel Particulate Filter OE 1127719303001a Fits Renault Kadjar 1.6 dCi Engine Exhaust Emission Purification","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54477558251866,"sku":null,"price":58.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/446.jpg?v=1785143860"},{"product_id":"aftermarket-sic-dpf-oem-341620920-for-2016-opel-astra-1-6-diesel-high-thermal-stability-diesel-exhaust-repair-spare-part","title":"Aftermarket SiC DPF OEM 341620920 FOR 2016 Opel Astra 1.6 Diesel, High Thermal Stability Diesel Exhaust Repair Spare Part","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54477594820954,"sku":null,"price":50.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/449.jpg?v=1785144487"},{"product_id":"nissan-qashqai-1-5-110kw-dpf-diesel-particulate-filter-heavy-duty-oem-spec-direct-replacement","title":"For Nissan Qashqai 1.5 110kW DPF Diesel Particulate Filter OEM Spec Direct Replacement","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1PCS","offer_id":54477595148634,"sku":null,"price":56.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/11_2c9d55f4-9cee-45ec-8686-fe09ff42bc11.jpg?v=1785145285"},{"product_id":"aftermarket-silicon-carbide-dpf-h1028172504424201047-for-2010-golf-6-1-6-tdi-105kw-engine-efficient-particulate-capture-exhaust-repair-component","title":"Aftermarket Silicon Carbide DPF H1028172504424201047 FOR 2010 Golf 6 1.6 TDI 105Kw Engine, Efficient Particulate Capture Exhaust Repair Component","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54477639123290,"sku":null,"price":49.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/452.jpg?v=1785145815"},{"product_id":"high-temperature-resistant-sic-dpf-oem-18307812283-fits-for-bmw-316d-e91-2011-diesel-engine-aftermarket-exhaust-soot-capture-filter","title":"High Temperature Resistant SiC DPF OEM 18307812283 Fits FOR BMW 316d E91 2011 Diesel Engine, Aftermarket Exhaust Soot Capture Filter","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54480456909146,"sku":null,"price":67.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/455.jpg?v=1785201321"},{"product_id":"heavy-duty-sic-dpf-filter-full-oe-04l131-matching-codes-for-skoda-octavia-3-2-0tdi-vehicle-exhaust-system-repair-upgrade","title":"Full set of original silicon carbide DPF 04L131 matching code, suitable for Skoda Octavia 3 2.0 TDI vehicle exhaust system repair and upgrade","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54480484368730,"sku":null,"price":70.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/459.jpg?v=1785206525"},{"product_id":"dpf-diesel-particulate-filter-fit-for-opel-zafira-b-1-7-cdti-2005-2014-direct-replacement","title":"DPF Diesel Particulate Filter Fit For OPEL ZAFIRA B 1.7 CDTI 2005-2014 Direct Replacement","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1PCS","offer_id":54480488792410,"sku":null,"price":61.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/44_11801a9b-afa0-4ad4-8b90-68fc8801d9f7.jpg?v=1785207585"},{"product_id":"for-skoda-octavia-3-2-0tdi-150km-dpf-middle-exhaust-pipe","title":"FOR Skoda Octavia 3 2.0TDI 150KM DPF Middle Exhaust Pipe","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54480490332506,"sku":null,"price":76.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/461.jpg?v=1785210541"},{"product_id":"for-1-6-hdi-diesel-engine-euro5-dpf-for-citroen-berlingo-reliable-performance-durability","title":"For HDI 1.6 Diesel Engine DPF for Citroen Berlingo Reliable Performance Durability","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1PCS","offer_id":54480494068058,"sku":null,"price":50.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/111_d29250d7-632c-4e6e-93a4-4f8374843976.jpg?v=1785210680"},{"product_id":"oem-standard-silicon-carbide-dpf-direct-fit-for-jeep-grand-cherokee-3-0-diesel-ecodiesel-heavy-duty-exhaust-particulate-filter-for-vehicle-maintenance","title":"OEM Standard Silicon Carbide DPF Direct Fit FOR Jeep Grand Cherokee 3.0 Diesel EcoDiesel Heavy Duty Exhaust Particulate Filter For Vehicle Maintenance","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54480580084058,"sku":null,"price":121.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/441_4353a92e-f95d-45b8-85f1-0ca7796e0e4d.jpg?v=1785219700"},{"product_id":"durable-silicon-carbide-dpf-filter-for-2015-vw-golf-2-0tdi-110kw-vin-matching-exhaust-system-repair-replacement-part","title":"Durable Silicon Carbide DPF Filter FOR 2015 VW Golf 2.0TDI 110kW, VIN Matching Exhaust System Repair \u0026 Replacement Part","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54480604725594,"sku":null,"price":72.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/458.jpg?v=1785221286"},{"product_id":"high-durability-silicon-carbide-dpf-filter-for-seat-leon-bmn-2-0tdi-170hp-vin-matching-exhaust-system-repair-replacement-spare-part","title":"High Durability Silicon Carbide DPF Filter for Seat Leon BMN 2.0TDI 170hp, VIN Matching Exhaust System Repair \u0026 Replacement Spare Part","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54480607019354,"sku":null,"price":42.53,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/452_ca0fb0a2-184f-4fe9-838c-1e3b7ca06743.jpg?v=1785221753"},{"product_id":"wear-resistant-silicon-carbide-dpf-filter-matched-oe-a2214901636-for-mercedes-s-class-w221-s350-diesel-vehicle-exhaust-replacement-upgrade-parts","title":"Wear Resistant Silicon Carbide DPF Filter Matched OE A2214901636 For Mercedes S-Class W221 S350 Diesel Vehicle Exhaust Replacement \u0026 Upgrade Parts","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54480610034010,"sku":null,"price":54.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/449_2cc93d44-4373-4d6f-830f-1b79fcb1958d.jpg?v=1785222405"},{"product_id":"wear-resistant-sic-dpf-filter-with-full-oem-code-compatibility-for-peugeot-207-dv6ted4-diesel-vehicle-exhaust-system-replacement-upgrade","title":"Wear Resistant SiC DPF Filter With Full OEM Code Compatibility for Peugeot 207 DV6TED4 Diesel Vehicle Exhaust System Replacement \u0026 Upgrade","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54480619766106,"sku":null,"price":54.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/465.jpg?v=1785223168"},{"product_id":"sic-dpf-oem-289b02f140-for-hyundai-santa-fe-iv-2-2-crdi-euro-6-diesel-exhaust-replacement-filter","title":"SiC DPF OEM 289B02F140 For Hyundai Santa Fe IV 2.2 CRDi Diesel Exhaust Replacement Filter","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54480660103514,"sku":null,"price":50.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/449_d96ab161-f6c7-4b44-ac88-f051770c367d.jpg?v=1785224206"},{"product_id":"sic-dpf-oem-32k34-03011-for-kobelco-construction-machine-high-temperature-exhaust-particulate-filter","title":"SiC DPF 32K34 03011 is suitable for Kobelco construction machinery high-temperature exhaust particulate filter","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54480672686426,"sku":null,"price":117.56,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/441_7cc8fe61-ba9a-4533-998f-371a78582374.jpg?v=1785224735"},{"product_id":"sic-dpf-pf0029-a2044901892-kt1247-for-2012-mercedes-c-class-2-2-diesel-dpf-replacement","title":"SiC DPF PF0029 A2044901892 KT1247 For 2012 Mercedes C-Class 2.2 Diesel DPF Replacement","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54480707027290,"sku":null,"price":50.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/449_9cb0054c-606c-412c-9da2-31aa45ba5d0f.jpg?v=1785225372"},{"product_id":"sic-dpf-for-2019-jeep-wrangler-2-2-diesel-adblue-system-exhaust-replacement-filter","title":"SiC DPF For 2019 Jeep Wrangler 2.2 Diesel AdBlue System Exhaust Replacement Filter","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54480730161498,"sku":null,"price":56.43,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/449_46c65c90-2c86-4456-ba57-cab1cda15556.jpg?v=1785226117"},{"product_id":"silicon-carbide-dpf-fits-for-2011-vw-amarok-diesel-high-temp-particulate-filter-replacement","title":"Silicon Carbide DPF Fits For 2011 VW Amarok Diesel, High Temp Particulate Filter Replacement","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54480788586842,"sku":null,"price":34.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/468.jpg?v=1785227307"},{"product_id":"sic-dpf-jmj1191-for-2014-ford-transit-ttg-2-2l-diesel-high-temperature-exhaust-particulate-filter","title":"SiC DPF JMJ1191 For 2014 Ford Transit TTG 2.2L Diesel High Temperature Exhaust Particulate Filter","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\u003cdiv class=\"cat-faq-module\"\u003e\n\u003cdiv class=\"module-header\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n\u003c\/div\u003e\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\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\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\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\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\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\u003c!-- Q7 – 安装DPF指南 --\u003e\n\u003cdetails open=\"\"\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\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\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\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\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\u003cdiv class=\"warning-box\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e• Handle the DPF with care – ceramic substrates are fragile.\u003cbr\u003e• DO NOT use leaded fuel or high‑sulfur diesel, as they will permanently damage the filter.\u003cbr\u003e• Ensure the engine is free of misfires and oil leaks before installation.\u003cbr\u003e• Always use the mounting mat – it is essential for thermal insulation and vibration damping.\u003cbr\u003e• Professional installation is strongly recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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\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\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"contact-item\"\u003e\n\u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003eWhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003eE-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n\u003c\/div\u003e\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!-- 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":"1pcs","offer_id":54480796549466,"sku":null,"price":50.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/450_43ab6e2b-ee8f-4936-9168-9e12d9465309.jpg?v=1785227975"}],"url":"https:\/\/www.svipcat.com\/collections\/vehicle-size.oembed?page=3","provider":"SVIPCAT Store","version":"1.0","type":"link"}