3776| 11
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大俠幫忙看看這個地方為什么有沉孔 |
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點評
對,應該與老板確認,。不過,,建議您找本手冊看看O型圈的使用范圍。
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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