... : anti-rust oil coating ,powder,etc.Equipment: milling machine,hobbing machine,drilling &CNC milling machine (XK8140:resolution of 0.001mm,positioning accuracy of 0 ... lathe, beam drilling machine, mobile universal drilling machine, shaping machine, horizontal boring machine, circular grinding, centreless grinding, surface grinding, digital wire cutting, threading machine, sawing machine, CNC lathe, 4 ...