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磷和錫異常對凸輪軸(鑄鐵)有哪些不良影響?對凸輪軸磨削裂紋有影響嗎? |
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點評
呵呵,現在管曲軸和凸輪軸了。
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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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