... Chromate plating,Anodize 3.ISO Keeper door lock component/Dooer Keeper/Door lock component Products Manufacture Lock ... , etc Surface treatment: Polishing, chrome/zinc/nickel plating, power coating, natural anodization, galvanizing, satin, electrophoress,plating etc. ... producing various kinds of precise machinery,Lock parts,door parts,Window fittings and hardware components, with firstrated equipments ...