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高壓密封設計,感覺被挖了一個小坑 |
點評
多大的螺紋?多長的扳手?
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小黑屋|手機版|Archiver|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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