Three-layer Composite Honeycomb woofer 三层复合蜂窝低音单元
three layer composite 三层复合材料
three-layer composite films 三层复合薄膜
The present invention is reflecting multifunctional three-layer composite film for greenhouse and its preparation process.
本发明涉及一种温室用光反射多功能三层复合薄膜及其制备方法。
The invention relates to a waterproof air and moisture permeable microporous film, a three-layer composite material and a preparation method and application thereof.
本发明涉及一种新的具有防水透气透湿功能的微孔膜及三层复合材料及其制备方法与用途。
The sterilized temperature of ordinarily retort pouch is below 120 degrees, most of them are made by two-layer or three-layer composite materials, with more than six months storage life.
普通杀菌袋一般在 120 度以下加热杀菌，大多是有两层至三层复合材料制成。
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