The core material is made of basalt and other natural ores as the main raw materials, which are melted into fibers at high temperature, added with an appropriate amount of binder, and solidified. It is a new type of fireproof board with the strongest fire resistance in the same category (sandwich panel series). This product is applicable to the heat insulation and sound insulation of drying rooms, paint baking rooms, industrial equipment, buildings and ships, as well as the ceiling and partition of electronic clean rooms, purification rooms, explosion-proof and fireproof workshops. It has passed the fire resistance limit test of the National Test Center. The fire resistance time is 70 minutes. The thickness of this product can be made into 50-150mm, which can be customized according to customer requirements.