1205| 11
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請(qǐng)教:包裝行業(yè)的輸送螺桿設(shè)計(jì)方法 |
評(píng)分
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點(diǎn)評(píng)
坐等大佬
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點(diǎn)評(píng)
有設(shè)計(jì)計(jì)算方法的,年代太久,忘了
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