... welding, forming, shaping, drilling, turning, milling, grinding, chip formatting, rolling for cnc machining parts.6. Secondary process: assembly, surface and heat treatment ... , brush, sand blasting, anodize, plating, powder coating.8. Application: CNC machining parts are used as Car parts, optical parts, Electric ... , Medical devices, Audio, etc..9. 100% inspection before packaging. CNC machine part