... cnc machining part 1.machine screw size,M3-M36 2.carbon, stainless steel 3.zinc plated,black,etc 4.flat,pan, etc. cnc machining part ... gold passivation, galvanizing, satin, etc.2.Processing Method: cnc machining, turning, milling, drilling, grinding, broaching, welding ... Details: Product name cnc machining part Material1.Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS4202.Steel:C45(K1045), C46 ...