5181| 9
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請教這些孔是用坐標(biāo)標(biāo)注還是用分度圓標(biāo)注?以中間通孔為中心。 |
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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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