1.fireproof 2.windproof 3.heat insulation 4.sound insulation For the structure of this product, it is consist of two ... remove dirt, so it can keep its clean and smooth.For the advantage of this product. It has good ability to ... , and also fireproof, anticorrosion, heat insulation, sound insulation. Beside these, it can be used recycled,For the application of this product. Ii ...