... green,red,opal,brown etc. (3)Light transmission,UV protection polycarbonate twin-wall Features:1) Light transmission: the light transmission reaches ... level fire retardant,neither fire drop nor poisonous gas 4) With glazed surface,can be cold and hot bend Application:widely ... size) 4) Color : blue,transparent,green,red,opal,brown etc.5) Color and size could be customized polycarbonate sheet twin-wall