... metal, such as pt,pd rh.purifying of unburned air, CO,NOx, HC Our company boasts first class automobile exhaust catalyst ... for the catalysts we made can be cordierite or metal. We use substrate supplied by not only Corning, ... Pd-Rh , pt-pa, and single Pd,pt, catalyst and so on, for gasoline engines. For different car and ... standard and our customer give us good evaluation. metal catalyst for motorcycle