... We are a reliable supplier that can make forging parts and casting parts. Here are some details ... 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 ...