... ,PA,PE Anodizing Anodizing ,Hard anodizing, Double anodizing Plating ( coating) Nickel plating, Zinc coating, Chrome plating, Silver plating, Gold plating, Bright Zinc ... . Polishing Burnishing, Sand casting, Polishing, Sand blast , etc Painting (powder coating) Phosphate coating, powder coating, etc Fabrication Process Aluminum Extrusion, Turning, Milling, Engraving, Grinding, Cutting ...