Product Description Product DescriptionMaterial: 45#Steel,20CrMnTi,40Cr,20CrNiMo,20MnCr5,GCR15SiMn,42CrMo,2Cr13stainless steel,Nylon,Bakelite,Copper,Aluminium.etcProcess:The main process is Gear Hobbing, Gear Shaping and Gear Grinding, Selecting production process...