Suitable for all autos Cell density:100-900 CPSI ... materials: Ferritic stainless steel SUS444, SUS441, SUS430 and austenitic stainless steel SUS304, SUS316. The core materials ... solder.Shape: round, oval, race track, squareness and other especial shape according to the design of client ... of Pt, Pd and Rh. We also supply Metallic Substrate without noble metals. Metallic substrate of catalytic converter