... , highway, water conservancy, subway etc.Technical Specification:NoItem/Specification100150200250300350400450500600800Note1ratio deviation, %-8-8-8-8-7-7-7-7-6-6-62Thickness, mm, ≥0.91.31.72.12.42 ... ≥0.30.60.91.21.51.82.12.42.73.24.07Equifinal aperture mm0.07-0.28Vertical permeability coefficient, cm/sKKx ...