乙烯也是一样,是原油精炼为成品油时的副产品。很普通的化工原料,黑龙江大庆和北京郊区的燕山石化以前都是用管子直接放出来烧掉
本帖于 2025-04-27 15:27:13 时间, 由普通用户 天青水蓝 编辑
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