4758| 22
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這類螺紋孔如何標注 |
點評
借樓,如果對面的孔也穿了,,應該怎樣標注才好,?
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點評
我也選擇這樣標,,甚至有時6H都不標
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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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