... , drilling, grinding, cutting, reaming and threading3)Plating: In house polishing, brushing, chrome plating, nickel plating, gold platingSurface treatmentElectro-polish, Chrome plating, Sandblasting, Painting, Powder coating, Electrophoresis ... ,GB standard .2.Process: Casting ,Machining,Assembly and Surface treatment.3.Surface finish : Powder coating or painting with various colors.4.Engineer service ...