对, 中国买美国乙烷的唯一原因就是因为成本问题, 中国的基础化工底子很厚, 好几个100万吨以上大石化厂

来源: testmobile 于 2025-10-13 16:02:27 [旧帖] [给我悄悄话] 本文已被阅读：次

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