... Stabilizer, Flange, Coupling, BOP Body, Tube Plate, Roller Forging, Roller Shell, Ring Forging, Gears, Gear Blank, Gear Shaft, Gear Wheel. 2. ... : Shafts, Sleeves, Rings, Cylinders, Blocks, Modules etc 4. Process: Forging/Casting – Normalizing & Tempering – Proof Machining- Quenching & Tempering – Finish ... / Ring ≤4.9 ≤3.5 Cylinder ≤1.5 ≤8.0 7. Standards: GB, JIS, AISI, SAE, ASTM/ASME, EN, DIN, GOST ...