中国那13套化肥工程是尼克松访华后从美国荷兰等国引进的技术和设备。但朝鲜被封锁，没法引进。

来源: 无机塑料于 2022-04-17 20:09:04 [旧帖] [给我悄悄话] 本文已被阅读：次

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