Welcome to inquire Guangzhou polyurethane sandwich - on Tam 13928947108. lower metal plate surface, sandwiching polyurethane foam. The metal surface can be color steel, galvanized steel, aluminum embossed steel and other steel and color. Polyurethane sandwich panel recognized as the world's best insulation materials. Features - Light weight: 35-40kg / square meter Insulation resistance: enter = 0.0175 kcal / m when the degree of overall steel is good, high bearing capacity... Since poly Press ester sandwich between two layers of steel after injection of the liquid, and then curing press molding, and the polyurethane itself as colloids, PU plate has excellent integrity, combined with the roof surface from the hydraulic type, its overall steel degree far better than other similar materials. With PU roof, saving steel purlin 1 / 3-2 / 3. Reasonable connection is simple: the roof using Snap mode, to avoid the risk of roof leaks, wall outlet using the male and female connectors, beautiful appearance, save the amount of spare parts, simple construction. Applications: industrial plants, warehouses, large public places, villas, modular cold storage building roof and wall. Welcome to inquire - Tam 13,928,947,108.