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shaft crank


    1.Material:34CrNiMo6,42CrMo4, C35E, C40E, C45E, etc.
    2.Hardness: HB240-320
    3.Forging reduction ratio: ≥4
    4.Manufacturing process: steel ingot→forging→rough machining→QT→2th rough machining→finishing machining→packing→delivery
    5.Quality required: Surface defect and decarburization shall be free. All dimensions are 100% OK.
    6.Packing: wooden box or metal pallet for protection against rust and damage.

    8.Quality Management Certification: ISO 9001:2015.

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