4825| 5
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焊接的尺寸有沒(méi)有"自由公差"的說(shuō)法? |
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謝謝
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有專(zhuān)門(mén)的公差
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Archiver|手機(jī)版|小黑屋|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
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