3861| 5
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求助:渦輪軸摩擦焊,北京或周邊地區 |
求助:空心渦輪葉片鑄造及加工
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摩擦焊接
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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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