Girth Gear, Gear Shaft, Hollow Shaft manufacturer / supplier in China, offering Forging High Precision Helical Gear Shaft Customized Drive Shaft, Wear-Resistant Helical Gear Shaft Torque Transmission Alloy Steel Gear Shaft for Pump, Deyu China Customized 30#, 45#, 40cr, 35CrMo, 42CrMo Steel Gear Spur Helical Gear Shaft and so on.