composite geomembrane 1.1-6m width, 2.length 30-100m/roll( ... :weight of base geotextile :100-1000g/m2, thickness of geomembrane:0.1-1.5mm2.two piece geotextile and one piece ... : Weight of base geotextile:80-600g/m2 ,thickness of geomembrane:0.2-1.5mm3.one piece geotextile and two piece ... geotetile 100-1000g/m2,thickness of geomembrane:0.1-0.8mm4.Multi-layersKinds of membrane:HDPE, LDPE,EVA,CPE,PVC ect. ...