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