The relations between process and product characteristic of straw packaging material and the influence of density of straw packaging material on its performance were studied.
研究了麦秸防护内衬包装材料的工艺和产品特性之间的关系，以及密度对这种材料性能的影响。
The characteristic of shrink packaging and paste packaging material were introduced.
本文介绍了全自动收缩膜包装机的工作原理、结构特点及维修。
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