waterproofing membrane PY-PE,PY-S,PY-M;G-PE,G-S,G-M;PYK-PE,PYK-S,PYK-M;GK-PE,GK-S,GK-M;NK-PE,NK-S,NK-M waterproofing membraneThickness: 2mm 3mm 4mmmaterial on the above side: PE S PE S M PE S M PE S MArea: 15±0.15 10±0.10 10±0.10 7.5±0.10Min weight: 33.0 37.5 32.0 35.0 40.0 42.0 45.0 50.0 31.5 33 37.5Thickness: average:2mm 3mm 4mm