Cellular Cordierite Honeycomb Ceramic / Nox Reduction Catalyst for Car 1. Product use After coated with catalyst, the product is widely applied in organic waste gas purification, heat exchange system industrial waste gas treatment, coal-fired power plant flue gas purification, NOx purification system, garbage incineration and harmful gas purification treatment, etc. 2.Overall dimensions standards Item Standard values Allowance Remark boundary dimension length 150MM ±1.5MM