記得上海五十年代提煉稀土的躍龍化工廠，提煉鋯鉿的合利冶煉廠，製作康銅絲的銅仁合金廠都是私人企業。

來源: chufang 於 2025-06-17 19:56:23 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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