... certification:ISO 2. processing: stamping, punching, bending 3. finish:nickel plated ... stainless steel, aluminum, brass ,etc2. Processing:Stamping, punching, bending, welding, threading, grinding, milling, machining, lathe ... Paints and primers, blacking, etc5. Industry: these parts are used in Automotive, Electrical, Building, Furniture, ... . Certificate: ISO9001:2008. high quality metal stamping parts