Car Honeycomb Ceramic Filter Plate , porous ceramic For Catalytic Converter Applications: After coated with catalysts, this product is applied in catalytic converter of gasoline vehicle to catalyze, convert and purify the exhaust, making vehicle exhaust reaching standards of Euro IV and Euro V. Technical performance of this product has achieved advanced level in China, and it approaches or has already reached the advanced level of similar products abroad. 1. Product use