还有包“钛”的？！这好象有点缺德啊。凭这强度，那多半是钢啊

来源: 周老大于 2022-12-30 08:51:04 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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还有包“钛”的？！ 这好象有点缺德啊。凭这强度，那多半是钢啊