Surface finishe: Nickel plated Material: Brass Machine: CNC machining, NC lathe Process: Turning, machining High precision Yunkai Mechanics group special Service:SHYK is specially ... parts: Materialsteel, stainless steel, Invar, carbon steel, free cutting steel, aluminum, brass, copper, alloy, etcFinishPlating, Oxiding, sand blasting, Painting, Powder coating ...