Cutting,punching and welding part. Remove sharp edges. Powder coating. Fine quality. Competitive price. Sheet metal part This is ... metal part made by 4.5mm cold roll steel with powder coating.This part involves the processes cutting,punching and welding ... ), CR (st12), Galvanized Steel, Stainless Steel (304, 310, 316, 439), Aluminium, Angle, Tube, Flat bar, etc.Founded in 2000, SHANGHAI CHAOYING ...