... Treatment:Quenching|TemperingMachinery:CNC-MachineTechnique:CastingCustomized Forged Rolled Rings , Die Forging Alloy Wheel For Wind Engine 100kg ... Carbon steel, Alloy steel3.Supplying range: Shafts, Sleeves, Rings, Cylinders, Blocks, Modules etc4. Process: Forging/Casting – ... report and mechanical properties report are approved by third party, Luoyang Ship Material Research Institute, CSIC.UT ...