Siliconite is used as the core material, and the galvanized or color-coated plate is the surface layer (two layers and high-strength adhesive, heated by high-speed continuous automatic molding machine, pressurized composite, trimmed, slotted, and cut. A new generation of building and decoration panels, with thermal insulation and convenient installation. It is the new type of fireproof board with the strongest fire resistance in the same type (sandwich panel series).