... , Flange, 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/Casting – Normalizing & Tempering – ...