CNC punching all sizes sheet metal stamping parts OEM services cold rolled steel,metal,etc powder ... s drawings, samples or specific description. Making process:laser cutting, stamping, CNC bending, punching, welding, riveting, grinding, etc.Surface ... , painting, polishing, brushing,chrome/zinc/nickel plating, anodize, electronic polish, silk-screen or customized. Service type:OEM, ODMPrototype leadtime ...