... :coating , galvanzied ,polisehd Customerized steel precision stamping part/metal stampingMaterial: carbon steel, tinplate, alloy steel, ... milling machine, drilling machine, cutting machine, latching machine.Machining process:Milling, drilling, threading, welding, polishing, assembly ... 7. Strong capability on rough machining and final machining Metal frame, steel part chorme plated bright, Metal welding ...