The registration address of beijing zinjiang science and technology development ltd. Is located in room 418 on the 27th floor of the 1st street in the economic development zone of beijing city, where legal persons are represented by the market supervision authority of beijing city, covering general projects: technical services, technology development, technical advice, technology exchange, technology transfer, technology diffusion; engineering consulting operations; socio-economic advisory services; computer systems services; software development; sale of mechanical equipment; sale of communications equipment; sale of medical equipment type i; sale of metal materials; sale of chemical products (other than licensed chemical products); wholesale distribution of computer hardware and hardware; sale of office supplies; sale of gold products; sale of construction materials; sale of fire-fighting equipment; sale of gifted flowers; sale of refrigeration, air-conditioning equipment; sale of water-quality pollutants and detection instrumentation instruments; sale of electrical equipment; repair of electrical equipment; installation of non-required equipment for the sale of metal; installation of equipment for the sale of electrical and mechanical equipment; provision of equipment for the sale of dangerous items; provision of equipment for the sale of chemical services; and provision of equipment for the repair of equipment and repair of equipment ( licensing projects (in addition to projects subject to legal authorization, operating on an autonomous basis under an operating licence): subcontracting of construction services; electrical installation services; carriage of goods by road (without dangerous goods); interior decorating of houses; construction works. (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