... ,Punching,Positioning,Sintering,Welding,Plating,etc. Surface Treatment:polishing,electroplate,electroless plating,electrolytic,passivation,etc.Plating Type:Nickel Plating,Tin ... Coating,Dip Tin,etc.Major Equipment:Stamping machines,Punching machine,Cutting machine,Sintering machine,Seam welding machine,Spot welding machine, Milling machine,Turning machine,Grinding machine,etc.Certification:ROHS ...