High density polyethylene geomembrane both sides smooth, roll width 8m, reduce ... cut-offs(insulation & separation) geosynthetic material.type: HDPE geomembrane, composite geomembrane Properties:high strength, low permeability, chemical corrosion resistance, ... construction & explosive rubbish, etc)2. water conservancy(such as waterproofing, stopping up leak, reinforcement for lake, river, channels, ...