... cnc turning parts 1.machine screw size,M3-M36 2.carbon, stainless steel 3.zinc plated,black,etc 4.flat,pan, etc. cnc ... , gold passivation, galvanizing, satin, etc.2.Processing Method: cnc machining, turning, milling, drilling, grinding, broaching, welding and assembly.3 ... SS304, SS316, SS416, SS4202.Steel:C45(K1045), C46(K1046),C203.Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37 ...