8351| 13
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關于套螺紋或攻螺紋之前的外徑或內孔尺寸如何確定? |
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點評
新手 在校生 又長見識了
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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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