biaorg logo

China Factory Cost-Effective Oil Drilling Machine Steel Spiral Bevel Gear/Gear Wheel

China Factory Cost-Effective Oil Drilling Machine Steel Spiral Bevel Gear/Gear Wheel
   Product DescriptionMaterial :42CrMo, 20CrMnMo, 20Cr2Ni4, 35CrMo, 20CrMnTi and Other high intensity alloy steelTooth...