... Coupling, BOP Body, Tube Plate, Roller Forging, Roller Shell, Ring Forging, Gears, Gear Blank, Gear Shaft, Gear Wheel. 2. Materials: Carbon steel, Alloy ... steel 3.Supplying range: Shafts, Sleeves, Rings, Cylinders, Blocks, Modules etc 4. Process: Forging ... :12. Products13. Packing & Delivery14. Company Certificate Forging Gear Blank