2973| 10
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機(jī)械圖紙中,,焊接符號標(biāo)注問題 |
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點(diǎn)評
現(xiàn)在我們也是文字說明,,注明焊點(diǎn)大小,,焊接牢固,焊接我們現(xiàn)在外發(fā),,這個詳細(xì)的技術(shù)我們也不懂,,很慚愧
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