Langfang Yanheng Fireproof Materials Co., Ltd. is registered in Wancheng Village, Liugezhuang Town, Dacheng County, Langfang City, Hebei Province. The registration authority is the Market Supervision Administration of Dacheng County, Langfang City, and the legal representative is Jin Weiwei. The business scope includes general projects: production of fireproof sealing materials; Sales of fireproof sealing materials; Production of refractory materials; Sales of refractory materials; Manufacturing of fiberglass and related products; Sales of fiberglass and related products; Manufacturing of insulation and soundproofing materials; Sales of insulation and soundproofing materials; Manufacturing of ecological environment materials; Sales of ecological environment materials; Manufacturing of lightweight building materials; Sales of lightweight building materials; Manufacturing of building waterproofing membrane products; Sales of building waterproofing membrane products; Rubber product manufacturing; Sales of rubber products; Manufacturing of plastic products; Sales of plastic products; Manufacturing of cement products; Sales of cement products; Fastener manufacturing; Sales of fasteners; Sealing component manufacturing; Sales of seals; Sales of coatings (excluding hazardous chemicals); Sales of anti-corrosion materials; Sales of insulation materials; Sales of building decoration materials; Retail of hardware products; Sales of chemical products (excluding licensed chemical products). (Except for projects that require approval according to law, business activities can be carried out independently based on the business license in accordance with the law) Licensed project: construction project construction; Construction professional operations; Construction labor subcontracting. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.)