Mr. Dong first introduced the company's development to Mr. Cui Kechang and his team and highlighted the related situation of the new patented product, silicon-aluminum-based fire-resistant insulation board, which was developed by our company and Hebei University of Technology. Compared to traditional exterior wall insulation materials, the silica-alumina fire-resistant insulation board is inspected by the national fixed fire extinguishing system and the quality supervision and inspection center of fire-resistant components. The fire protection level reaches Class A2, and it complies with the “Code for the Fire Protection of External Wall Insulation Projects” and the “Outside of Civil Buildings. The requirements of the Provisional Regulations for Fire Protection Systems and Exterior Wall Fire Protection are actively responding to the concept of green environmental protection of national green building materials.