... transmissions, auto parts, construction equipment, machine tools, conveyors, material handling, multi-spindle drives, roller feeds etc. Standard ACME,JIS,DIN,BSW ... ,GB etc.(including non-standard) Material Carbon steel such as C45,20CrMnTi,40Cr,42CrMo,45# Quality Professional manufacturing ... us your drawings for better quotation and other details. precision stainless steel worm and worm gear