It is a new type of high-end energy-saving building board, which is composed of A1 grade fireproof and thermal insulation material rock wool or glass wool as the core material layer, steel plates with various colors, materials and patterns as the decorative surface, automatic foaming polyurethane edge sealing at both ends, and imported special high-performance adhesive with the assistance of professional equipment. The board is not only beautiful and has strong decorative performance, but also heat preservation in winter and heat insulation in summer, saving energy and reducing consumption. Steel structure workshop, power plant, substation, car exhibition hall, terminal building, railway station, stadium, large supermarket, logistics center and other buildings can see its shadow.