GeomembraneChina Thickness 1.0mm Anti-Seepage Impermeable Impervious Waterproof Double-Sided Textured HDPE Geomembrane Liner for Reservoir Dam, Find details about China HDPE Geomembrane, Dam Liner from Thickness 1.0mm Anti-Seepage Impermeable Impervious Waterproof Double-Sided Textured HDPE Geomembrane Liner for Reservoir Dam