13223| 17
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求高人指點,焊接時怎么保證同軸度 |
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相關帖子 |
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點評
注意人家是兩頭螺紋
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點評
人家兩頭螺紋
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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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