钢铁现在已经没有美国产的了，我工作过的所有产业钢材基本中国，钛合金基本俄罗斯。

来源: Rockeymountain 于 2025-04-05 08:41:04 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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