The registered address of shanghai python optical science and technology ltd. Is located in room 24, no. 173, south hunksung township, phun hyun district, shanghai city, and is registered as the market supervisory authority of hueng hyun district, with legal representatives, and is operated on general items: technical services, technology development, technical advice, technology exchange, technology transfer, technology diffusion; sale of optical instruments; sale of electronic measuring instruments; sale of electric instrument instruments; repair of instrumentation; sale of experimental analytical instruments; sale of special instrument instruments for environmental monitoring; sale of mechanical and electrical equipment; sale of instrumentation instruments for monitoring and detection of pollutants in water quality; sale of electronics products; sale of electronics and electromechanical components; sale of optical devices; sale of semiconductor lighting equipment; sale of mechanical equipment; sale of electrical equipment; distribution of computer hardware and equipment and ancillary equipment; retailing of computer hardware and assistive equipment; sale of chemical products (other than licensed chemical products); wholesale distribution of electronicware; retailing of general mechanical equipment installation services; rental services (other than licensed leased services); import and export of goods. (in addition to projects subject to authorization under the law, the operation of the business is carried out autonomously under a licence)