Girth Gear, Gear Shaft, Hollow Shaft manufacturer / supplier in China, offering Heavy Duty Forged Steel Rotary Kiln Large Diameter Ring Gear Open Girth Gear for Cement Plant and Ball Mill, Custom Fabricated Steel Casting Trunnions for Sag & Ball Mill Support, High-Quality Steel Casting Ball Mill Trunnion & Hollow Shaft for Mining Equipment and so on.