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Jinan,Shandong,China China
Specifications 1.Dia:20mm-150mm 2.Material:60Mn 65Mn #45 B2 3.HRC:60-65 4.Factory Audit and SGS Weight and Hardness of RN Forged Steel Ball Normin
Specifications 1.Dia:20mm-150mm 2.Material:60Mn 65Mn #45 B2 3.HRC:60-65 4.Factory Audit and SGS ...
Personne à contacter Jane Zhao
Nom de la société Jinan, Shandong
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