... Carburization and the hardness cuold be reached HRC58-623) Gear Mould no.: 0.3~154) Teeth profile: Spur, ... or other types 5) Use application: gear box for steelworks Product TypeCNC hobbing gearMaterial:42CrMo, 20CrMnMo, 20Cr2Ni4, 35CrMo, 20CrMnTi ... and other high intensity alloy steelProcess methodCNC Turning, milling ,hobbing,drilling, grinding,plating etc.Surface finish:Chrome plating, Anodization ...