Girth Gear, Gear Shaft, Hollow Shaft manufacturer / supplier in China, offering Custom CNC Machining Heavy Machinery High Precision Forging Steel Spur Gear Pinion Shaft Manufacturer, Custom High Precision Alloy Steel Spur Helical Gear Shaft for Electric Car, Rotary Kiln Pinion/Mill Pinion Forging Quality Spur Gear Shaft and so on.