... inculdes stainless steel,aluminium,copper We are an ISO certified manufacturer of precision CNC machining parts,turning, milling, forging and stamping parts in ... work Material: Invar,steel, stainless steel, aluminum, brass, alloy... Finish: heat treated, oxided, plated, blastedServiceMachining workMaterialsteel, stainless steel, Invar, carbon steel, free cutting steel, aluminum, brass, copper ...