... cold stamping part OEM metal partMaterialcarbon steel, stainless steel, steel tube, steel rod, aluminium , brass, zinc alloy ... , bending, welding, casting, punching, machingSurfacepowder coating, zinc plated, nickel-chrome plated, painting, heat treatment and ... product all customer metal product, stamping part, deep drawing part, punching part, casting part. Weld wire mesh according to clients ...