The basic ideas of PVC extension project has been introduced, and the specific method of innovation of each section in PVC production chain has been put forward.
介绍了聚氯乙烯扩建工程的基本设想，提出聚氯乙烯各工段改造的具体方法。
The basic ideas of PVC extension project has been introduced, and the specific method of innovation of each section in PVC production chain has been put forward.
介绍了聚氯乙烯扩建工程的基本设想，提出聚氯乙烯各工段改造的具体方法。
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