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35CrMo鍛造零件熱處理后螺紋孔出現裂紋可能是什么原因?參照依據?急急急! |
Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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