... and mixed ordersannular gear processing methods:injection, hobbing, CNC, PM, MIM,Casted & forgedannular gearannularAbout our factory: ... factory presently has the NC floor type milling, vertical lathe, hanger bridge cranes, three rollers symmetrical polishing-edge ... cutting machine, CNC cutting machine,gear hobbing machine, milling gear, gear grinding machine, simple columnar vertical lathe and other ...