Ketelong Polycarbonate hollow sheet is made from virgin polycarbonate pellet and the high concentration UV inhibition by coextrusion. The sheet possesses the features of light in weight, pervious to light, impact resistance, heat isolation, flame retardant, endurance, etc. It's great material for Skylight roof commercial building, residential building,factory building, warehouse, indoor stadium, advertising board, motor shed, partitions for swimming pool,greenhouse and indoor chamber, decoration and exhibition.