2500| 5
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請(qǐng)教鋅合金鑄件性能 |
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相關(guān)帖子
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點(diǎn)評(píng)
為啥會(huì)好多了,?鋅合金硬度不比鋁合金高吧。密度高而已,。原則上鋁合金不勝任的場(chǎng)合,,鋅合金也不行。
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