... Open Die Forging, Main Shaft, Wind Power Shaft, Stabilizer, Flange, Coupling, BOP Body, Tube Plate, Roller Forging, Roller Shell, Ring ... Gear Shaft, Gear Wheel. 2. Materials: Carbon steel, Alloy steel 3.Supplying range: Shafts, Sleeves, Rings, Cylinders, Blocks, Modules etc 4 ... Ingot: EAF-LF-VD/ESR. Material Certificate according to En10204-3.1 is requested from ingot supplier. 6. Specifications of ...