... supply both ceramic element coated with noble metals of Pt, Pd, Rh and ceramic element without noble metals. Metallic substrate is ... in active layer is coated with noble metal like Pt,Pd,Rh.Materials:Stainless steels, 304L, 316L, carbon steels, aluminium, copper ... ,300,400,500,600CPSI(cells per square inch),the diameter from 28mm to 550mmWe can product metallicubstrate follow customer’s request ...