... of the products for your reference. 1. Main products: Custom Open Die Forging, Main Shaft, Wind Power Shaft, Stabilizer, Flange, ... Coupling, BOP Body, Tube Plate, Roller Forging, Ring Forging, Gear Blank, Gear Wheel. 2. Materials: Carbon steel, Alloy ... Outer Dia 600mm max, Length 2000mm max, Weight 4T max.Ring: Outer Dia 1600mm, Weight 4T max 10.Certification: ISO9001: 2000 ...