2751| 9
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壓縮空氣軟管結構請教 |
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點評
有可能是,設備中間有個氣密性檢測的工位
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點評
敲了敲,管子感覺像是空的
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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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