3079| 12
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鋁型材能否通過提高硬度去提高強(qiáng)度或剛度,? |
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點(diǎn)評(píng)
這。,。,。。,。,。。材料學(xué)白學(xué)了
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點(diǎn)評(píng)
熱處理就是最關(guān)鍵的技術(shù)之一,中國(guó)相對(duì)來說就是這一塊比較弱啊,。
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點(diǎn)評(píng)
對(duì)啊,,除非鋁型材廠家是豬來的。
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