... Ring Forging, Gear Blank, Gear Wheel.2. Materials: Carbon steel, Alloy steel, Copper, etc3. Supplying range: Shafts, Sleeves, Rings, Cylinders, Blocks, Modules etc4 ... , NDE Report, Heat Treatment Report, Dimensions Check Report7. Specifications of Forging:ShapeDiameter(m)Length(M) Shaft ≤2.5 ≤15 Block ... 10. Certification: ISO9001: 2000 11. OEM and Customized service offered kinds of forging products