1664| 3
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關(guān)于未注公差 |
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點(diǎn)評(píng)
應(yīng)該要寫(xiě)年份的。如果不寫(xiě),標(biāo)準(zhǔn)更新了,尺寸有可能就更改的。那樣你的零件配合可能就會(huì)出問(wèn)題了
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