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Open Die Forging 86crmov7 17crnimo7-6 Steel Rotor Shafts Used as Heavy Macinery Equipement Material: 4140, 40Cr,45#,42CrMo,40CrNiMo,86CrNiMov7 ,17CrNiMo7-6, etc 1. Process: EAF + LF + VD + Forged + ...