... Machining Materials:stainless steel machining parts , alloy steel machining parts ,brass machining parts , bronze machining parts , copper machining parts , aluminum machining ... Processstamping, deep stamping, bending, punching, threading,welding, tapping, rivetingMaterialAluminum, copper, brass, stainless steel, steel, iron, alloy, zinc etc.FinishPolishing; Anodize; SandingPowder ...