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齒輪斷了,大家來分析分析 |
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點(diǎn)評
多謝大俠指點(diǎn)
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點(diǎn)評
還望大俠給詳細(xì)講解下,,熱處理正常的話,,斷面應(yīng)該是什么樣的呢?
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點(diǎn)評
請教大俠,,這個是滲碳鋼,也需要調(diào)質(zhì)么,?正常的工藝應(yīng)該是怎么個順序呢,?
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評分
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