Small spur gear Good performance High precision and durable Capacity 10,000 pcs per month Competetive ... hobbing gearMaterial:42CrMo, 20CrMnMo, 20Cr2Ni4, 35CrMo, 20CrMnTi ,17CrNi2MoA and other high intensity alloy steelProcess methodCNC Turning, milling ,hobbing,drilling, grinding,plating ...