5222| 20
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老師都看看這個圖紙標注 |
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點評
我也感覺有點離譜,12的孔,500多的深度,見識不夠,沒見過怎么加工。
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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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