... 42CrMo4, 36CrNiMo4 or carbon steel 3)DIN,EN,JB standard 4)Mechanical properties Technical Data:National standards: Ο GB/T6402- ... . Our company always insists "strengthen management, win by quality, satisfy the needs of customers, gain satisfaction by faithfulness ... you in every respect of ent. production quality, after-sale service and management. High quality Forged Rotor Spindle Axle (fan shaft)