... produce various kinds of gears, shafts, washers, sleeves, rings, flange, steel cylinders, crankshafts, blocks and isoforms.1, Forging Parts Material: High ... Strength Alloy Steel or Carbon Steel2, Forging Parts Process: Ingot-Forging-Rough Machining-Heat Treatment-Mechanical ... : to guarantee supplying best quality products to Customers forging parts