... steel, carbon steel, copper, alloy.2. Finish: zinc plated, chrome, polish, nickel, etc..3. Size: 8m of max length, 10m of ... , chip formatting, rolling for cnc machining parts.6. Secondary process: assembly, surface and heat treatment, etc..7. Surface Treatment: polish, brush, sand blasting ... , Industrial, Medical devices, Audio, etc..9. 100% inspection before packaging. CNC machine part