Langfang Xuanyi Thermal Insulation Materials Co., Ltd. is registered at Xiyaotou Village, Quancun Town, Dacheng County, Langfang City, Hebei Province. The registration authority is the Market Supervision and Administration Bureau of Dacheng County, Langfang City, and the legal representative is Liu Weiwei. The business scope includes processing and sales of glass wool products, rock wool products, polyurethane products, aluminum silicate products, and silicate products; Sales: Special adhesive for fire doors, building materials, hardware and electrical products, chemical products (excluding dangerous drugs); Contracting: Construction of anti-corrosion and insulation engineering. (Projects that require approval according to law can only be operated with the approval of relevant departments)