... automatic stamping machine, CNC stamping partCNC stamping part , chinese metal stamping part , metal stamping parts1. Over 12 ... sheet,galvanized steel sheet or tube),stainless steel,copper ,brass,aluminum,etc4.Finish:zinc plated,chromated plated ... punching, threading,welding, tapping, rivetingMaterialStainless steel, carbon steel,copper, brass, and bronze (according to customer's requirements)Surface ...