Polystyrene foam sandwich sandwich (foam sandwich) is a new building panels, by the outer and inner sides of the polystyrene plate by computer-controlled machine Color pressurized humidified and covered high strength adhesive composite. Features: light weight, 10 ~ 14kg / m2, easy installation, short construction period, and lower total cost, the overall stiffness, high strength, flexible, sheet length can be determined according to the project design requirements and installation of transport conditions. Insulation, noise, good moisturizing properties, with an average thermal conductivity:? 0.032 kcal / meters degrees. Widely used: prefabricated houses, steel, warehouses, commercial buildings, indoor and outdoor stadiums, cold storage, building interior walls and the like.