... 3:Easy installation; 4:Quality assurance. Waterproofing material:Environmental protection, sanitation ( such as landfill, waste water treament, toxic and harmful ... chemicals disposal sites, storage of dangerous goods, industrial waste, construction and demolition waste,etc.)Water (such as impervious, stop water ... )≥1500pass7The range of Temperature,°c≥50 Breeding special high quality hdpe Geomembrane