... . accurate dimension 3. fine surface 4. perfect craft 5. OEM is welcome Precise CNC machining center Parts 1. excellent dimension2. fine surface3. ISO 9001 ... : carbon steel, stainless steel , brass, Aluminium7. craft: Cutting, CNC, Grinding8. finish: zinc, Nickel , carburizing, heat treatment, polishing and etc Precision CNC machining center Parts