... kinds of automobile catalysts, which are suitable for cars in all types and can meet the ... and CARB.The substrate for the catalysts we made can be cordierite or metal. We use substrate supplied ... but also some local supplies, such as Yixin non-metal mechanical Co., Ltd. and Wangzi Ceramic Co.,Ltd ... single Pd,pt, catalyst and so on, for gasoline engines. For different car and different under-floor, the ...