132539| 331
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孔粗糙度要求6.3,我們現在達不到! |
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點評
確實大材小用啊
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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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