Its surface covered a layer of aluminum with 1.0 to 1.2mm thickness, and a steel panel or aluminum panel of corugated shape on back, bonded by epoxy resin binder, guarantee the adhesive strength and uniformly compound.Coating of the aluminum surface: use fluorine carbon coatings to resist acid-rain, air pollutions and UV ray efecively. and durable. strong adsorbabiliy, nice glossiness, non-discoloring.Own flat surface, able to be applied for big piece of decorating board and won't be out of shape, easy to clean, variety of colors, excellent performances of sound proofing and heat resistance, reach A class of fire-proof。

Widely used in appropriate for public buldings of large scale, such as movie theater, music hall, exibition hall and gym.