The registration address of the beijing long-term heng dynasty ltd. Is located on the 15th to 16th floor of unit 2 of the 10th floor of the bong dynasty, beijing city. The registration authority is the market supervisory authority of the hong dynasty district of beijing and is represented by legal persons. It operates on general items: technical services, technology development, technical advice, technology exchange, technology transfer, technology promotion; information advisory services (other than licensed information consultancy); marketing of communications equipment; sale of chemical products (other than licensed chemical products); socio-economic consultancy services; sale of mechanical equipment; sale of instrumentation instruments; sale of appliances; retailing of solar appliances; conference and exhibition services; manufacture of specialized instruments; repair of instrumentation forms; sale of type 1 medical devices; sale of electronic devices and mechanical components; retail sale of hardware and assistive equipment; sale of glass instruments; sale of technical glass products; sale of japanese supplies; retailing of stationery; technical development of biochemical products; sale of biological products (other than licensed chemical products); sale of specialized chemical products (other than dangerous chemicals). (in addition to projects subject to legal authorization, activities are carried out on an autonomous basis in accordance with the law under a business licence) (a project subject to approval by law may only be carried out with the approval of the relevant department, depending on the documents or licences approved by the relevant department) (no activity shall be carried out in the category of projects prohibited and restricted by the state and municipal industrial policy