1,prevent grass grown 2,high permeability 3,protect soil 4,anti-ageing 5,reduce maintenance costs ... connected, there are gaps. Itshave the bending strength, tensile strength, high sealing, heat-resisting frostresistance, and other materials to stick the ... alkali strong stability, shading the advantageof high rate. Its widely used in substation, and not high voltage towers, park,railway, Bridges have ...