... 2light,hard,environmental 3good waterproof,moistureproof 4anticorrosion Extruded polystyrene sheet 1 outdoor non-combustible extruded polystyrene board 2 light, ... waterproof,moistureproof 4 anticorrosionMainly we produce 5 style extruded polystyrene sheet:1) Non-combustible Class B1 extruded polystyrene insulation board ... ,60,70,80,90,100 common width of the sheet is 1m, which could be adjusted as 1.1 ...