1.fireproof 2.windproof 3.heat insulation 4.sound insulation For the structure of this product, it is consist of ... parts. The one is glass plate, the other one is rockwool. It has excellent ability to remove dirt, so it can ... resist earthquake, windstorm, insect, and also fireproof, anticorrosion, heat insulation, sound insulation. Beside these, it can be used recycled,For the application ...