3832| 5
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拉釘選用,幾個疑問 |
點評
有壓力釋放口,不會從沒有密封圈的位置流出的,除非壓力釋放口被堵塞
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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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