... -environment higher cost performance,higher quality,use in Motorcycle/Car exhaust metallic substrateWe are Beihai Huihuang Langjie Environmental &Tech ... heat-resistance, etc. It is widely used in exhaust gas purification, especially for motorbike.Firstly metallic substrate should ... Pt,Pd,Rh.Materials:Stainless steels, 304L, 316L, carbon steels, aluminium, copper, bronze etc. Other materials available ...