... inside substrate (metal or ceramic) coate Our company has successfully developed many types of auto Catalytic Converter, which are suitable for cars ... cover;and make rare-earth and little noble metal as catalyst,by burned and drying out to complete.2. catalysis devices ... /sqt(300cells, 600cells, 800 cells are also available)3. Inside catalyst (Pt, Pd,Rh+rare earth) coating on honey combed metal ...