... 2. Finishing process : cutting,lathing,milling,drilling,tapping,punching,CNC machining,Anodizing(natural color,silver,black,gold etc.),powder coating,brushing ... method:According to customer's requests5. Advantage: A. Precious machining and cutting: length tolerance can be 0.5 mm,hole ... 0.05mm. B. All processes covering extruding,milling, machining and surface treatment are in the same factory to ensure ...