4051| 20
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老師都看看這個圖紙標(biāo)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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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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