Asymmetric reverse osmosis (ro) polyamide (pa) composite membrane may be modified by means of solvent processing technique into pervaporation (PV) membrane for separating organic aqueous solution.

非对称性的反渗透(RO)聚酰胺(PA)复合膜可以通过溶剂处理方法改性成为渗透汽化(PV)分离有机物水溶液的均相膜。

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In recent year, PA polyamide, white cardboard, electronic mesh screen and other projects of relatively high technical levels have been launched into production one after another.

近年来，锦纶、白卡纸、电子网目板等技术水平较高的项目相继投产。

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