... :4mm PC Corrugated Sheet Size:2.1*5. Transparent Thermal Insulation Corrugated PC Sheet 2.1m*5.8m APPLICATION of ... front wind shields of notorcycles. airplanes, trains, liners, vehicles, notors boats, submarines and police glass shields.4. Telephone boths, advertising boards ... brown, etc.Special specification and color are available. Transparent Thermal Insulation Corrugated PC Sheet 2.1m*5.8m