waterproof membrane for wastewater treatment plant 1,Material:HDPE 2,Impermeable 3,Manufacturer:high quality 4.ISO:9001:2008 1,Thickness:0.5mm-2.5mm2,Width:6m-6.5m3,Length:30m-100m4,Supply type:make-to-orderProperty1,Good impermeable; 2,Excellent environmental stress resistant cracking performance; 3,Excellent performance of chemical erosion resistance; 4,Big scope of application temperature and ...