cnc turning parts 1.machine screw size,M3-M36 2.carbon, stainless steel 3.zinc plated,black,etc 4.flat,pan, etc. cnc ... yellow passivation, gold passivation, galvanizing, satin, etc.2.Processing Method: cnc machining, turning, milling, drilling, grinding, broaching, welding and assembly.3 ... JIS,ANSI4.ISO9001-2008,SGS,ROHS certificate.5.We have a lot of years technical experiences, we are engaged in the ...