Material | Low/middle/high carbon steel, stainless steel, piano wire, spring steel, aluminium, brass, bronze, copper, and other customized material. | ||||
Surface treatment | Heat treatment, (Zinc, nickel, chrome, tin, brass)plating, black oxide, powder coating, paint coating, anodizing, etc. | ||||
Processing | Heading, tapping, etc. | ||||
Service | OEM/ODM |