就说大家感兴趣的子弹制造。德国在一战后期就开始用钢制弹壳。苏联在三十年代研发成功，从此使用钢制弹壳。中国继承了苏联的技术

来源: thore 于 2026-01-10 19:02:13 [旧帖] [给我悄悄话] 本文已被阅读：次

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