... 1.OEM Lock part 2.Zinc,Nickel or Chromate plating,Anodize 3.ISO9001:2008 Brass door Hooks Components/ ... Punching, Riveting, Bending, Cutting, Welding, Threading, Grinding, Milling, Machining, Drilling, etc Surface treatment: Polishing, chrome/zinc/nickel plating, power ... quality system.Main processing are stamping,casting, CNC machining,hand polishing,automatic polishing and plastic injecting. We ...