总结了EVOH树脂的主要用途和研究开发动向，以及世界各地的生产和需求情况。
This paper summarizes the main applications, research and development trends, and world production and demand situation of EVOH resin.
提供了各主要生产国的塑料产量。对树脂合成工艺、产品应用开发、树脂品种延伸等作了较详细的介绍。
The plastics output of main countries in the world, the synthesis of resin, the application and development of plastics product and the new grades of resins introduced in greater detail.
介绍国内外聚乙烯管材料的开发和生产情况，以及聚乙烯管材树脂的主要生产厂家。
Describes the development and production status of polyethylene pipe resin at home and abroad as well as the development advances of new polyethylene pipe resins.
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