... 1.Material:HDPE 2.Width:1-7M,Length:50-200M 3.Certificate:ISO 4.Thickness:0.25MM-3MM Contact ... is 1/3«1/2 lower than that of PVC film, glass and cloth.6.Convevient to ... lakes, and the impervious, slope protection, etc.)3.Municipal projects (underground subway, engineering underground and reservoirs ... the lining of settling basin, second lining, etc)6.Mining (washing and selecting pool, heap pool, ashery ...