... shaft of wind turbine 1. Forged,machined,tempering and annealing 2. Inspected by MT,PT,UT, ... TENSILE,Impact,etc. Features: 3MW, 2MW and 1.5MW wind turbine principal shaft Standards: ASTM, ... : TUV, ISO9001: 2000 Materials: Carbon, stainless steel and alloy steel Delivery Status: N + T (Normalizing + ... a high level of technical team in China.Welcome your inquiry! big size Forging steel main Shaft