... cnc turning parts 1.machine screw size,M3-M36 2.carbon, stainless steel 3.zinc plated,black,etc 4.flat,pan, etc. cnc router parts ... passivation, galvanizing, satin, etc.2.Processing Method: cnc machining, turning, milling, drilling, grinding, broaching, welding and assembly ... , C52100, C54400, etc5.Iron: 1213, 12L14,12156.Aluminum: Al6061, Al6063 SpecificationM3-M36ColorPlain, blue plated, white plated ...