The registration address of the firm is located at no. 1241, located in the village of the forest park of the guangan springs and leisure business park, located in the province of hebei province. The registration authority is the guangan county market supervisory authority, represented by legal persons and includes general items: production, processing, marketing: filtration equipment, specialized equipment for environmental protection, precision machinery equipment; sales: core filters, filters, filters, filters, filters, filters, filters, filters, filters, filters, valves, compressors, spare parts, hardware products, rubber products, plastics, paper products, stainless steel products, steel, chemical products (excluding dangerous chemicals), spraying equipment, purification equipment, car spare parts, machinery and accessories, vacuum pump equipment and accessories, office consumables, building materials (without sand), daily supplies, specialized equipment for environmental protection, technical research and development of filtering equipment, technology transfer, technical advice, technical services. (in addition to projects subject to authorization under the law, the operation of the business is carried out autonomously under a licence)