嗯。镁铝合金有很好的强度和韧性，我喜欢！

来源: 亦舒于 2019-07-18 21:58:07 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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嗯。镁铝 合金 有很好的强度和韧性，我喜欢！