... and 1.5MW wing turbine principal shaft Standards: ASTM, ASME, DIN, SIS and EURONORM Certification:-ISO9001: 2000 -CCS quality management system certification ... many various of excellent forging parts for different industry like wind turbine shafts , ship shafts , heavy gears , flanges , ring pieces , all kinds ... .If you have any question , please contact me . Thank you . wind turbine shaft