Compared with metal and inorganic microporous filter media, the specific gravity of polymer microporous filter media is less than 1 or close to 1, and having lightweight.
与金属类及无机类微孔过滤介质相比，高分子微孔过滤介质的比重小于1或接近1，重量轻。
2
Used for the waterproof sealing on concrete wall panel slab ventilation pipes the lightweight panel products window and doors of metal products asbestos boards gypsum board wood plastic etc.
用于混凝土墙板、板、风管道的防水密封，金属制品、棉板、膏板、料等轻型板材和门窗的防水、封。
3
Used for the waterproof sealing on concrete wall panel slab ventilation PIP es the lightweight panel products window and doors of metal products asbestos boards gypsum board wood plastic etc.