... ,JIS,DIN,BSW,GB etc.(including non-standard) Material Carbon steel such as C45,20CrMnTi,40Cr,42CrMo,45# Quality Professional manufacturing ... CNC engine lathe, milling machine, drilling machine, hobbing machine, grinder, gear shaper, testing center. Processing 1)Adopts optimal design and shot ... us your drawings for better quotation and other details. precision stainless steel worm and worm gear