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此圖12-1-3/8-8UN-2B螺紋加工在C面還是B面? |
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點(diǎn)評(píng)
有道理,看圖必須要全面的看,,仔細(xì)地看,,分析的看,這是這個(gè)行業(yè)的基本要求與長(zhǎng)期養(yǎng)成的好習(xí)慣,,雖然掙錢(qián)不多,,但責(zé)任重大。呵呵,,行業(yè)之悲哀,,國(guó)家之悲哀。
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