... Easy treaments to the delicate parts of cor Long life waterproof membrane1).High tensile strength and elongation rate, highly flexibility ... construction for roof construction, subway, bridges, channel tunnel, planted roof, waterproof and drainage system, pools, dam, irrigation system, light steel roof ... , No CrackImpermeability(0.3MPa*2h) ImpermeableAnti-punchImpermeable Long life waterproof membrane