... InsulationThe hollow form and polycarbonate resin offer significant advantage for sound insulation.7.Weather AbilityIt has super-weather ... lighting shed of underground garage entryway.5) Lighting canopy for corridors, passages and subway entries.6) Walls, roofs, ... shields.16)Front wind shields of motorcycles ,airplanes ,trains ,liners, vehicles, motorboats ,submarines and police glass shield.pc solid ...