forged shaft 1.used for wind power generator:850kw-3.0mw, 3t-30t/pc 2.100% ultrasonic test 3.ISO9001, ISO14001, OHSMS18001 Shaft ... : 42 CrMo4, 34 CrMo4, 34CrNiMo6 and so on5. test: 100% ultrasonic test6. production capacity: 40,000 tons7. certifications: ISO9001:2008, ISO14001 ...