... stainless steel, SECC material, galvanized steel, Aluminum, etc.; 2.sheet metal progress sheet metal stamping we are specialized in all ... cold roll steel, stainless steel, SECC material, galvanized steel, Aluminum, etc.2.Process: stamping, bending, welding, punching, deep ... 61, NIMAX etc4) Product Material: Stainless steel, carbon steel, aluminum, brass, and so on5) Making process: Progression die, ...