Big petrochemical and chemical factories onght to research and develop engineering plastics and Hi - tech textile fibers, if porsible.
石化和化工大企业，结合产品条件，延伸开发工程塑料与高强度新纤维。
This hi-tech enterprise is mainly engaged in utilization research, production and sale of newly projects engineering plastics.
是集新型工程塑料应用研究、生产、销售为一体的高科技企业。
This hi-tech enterprise is mainly engaged in utilization research, production and sale of newly projects engineering plastics.
是集新型工程塑料应用研究、生产、销售为一体的高科技企业。
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