... metal part made by 4.5mm cold roll steel with powder coating.This part involves the processes cutting,punching and welding.We ... MaterialA variety of materials are always ready to be purchased in our stock house: HR (st37), CR (st12), Galvanized Steel, Stainless ... , 310, 316, 439), Aluminium, Angle, Tube, Flat bar, etc.Founded in 2000, SHANGHAI CHAOYING METALLIC PRODUTS Co., Ltd., with a total ...