Steel eps sandwich panel The inner and outer sides are made of glass steel plate and the sandwich layer of polystyrene foam is made by high pressure composite of German vacuum technology. Eps sandwich panel of the sandwich panel is smooth and clean, and the dirt can be easily removed. The entire panel is brightly colored and has excellent gloss retention. There is a layer of excellent gel coat on the surface of the glass steel plate. It has good chemical stability to the atmosphere, water and general concentration of acid, alkali, salt and other media. It has high surface finish, excellent gloss retention, no discoloration, corrosion resistance and protection. Light and anti-aging.