... according the customer's drawings. Max.Diameter:2M Products:Forged Shaft.Steel grade:Carbon steel:Chinese Standard:20#,25#,35#, ... , UK, Germany, France, Italy, Spain and South Africa. Applications of Forged ShaftsWind Turbine : Turbine Rotor Shaft, Turbine Blade, Valve, Bush and ... steel, stainless steel,Material Standard:GB, BS, ASTM, EN, DIN, AISI, JIS Forged Shafts of 42CrMo4/4340