General projects: sale of instrument instruments; sale of electronic measuring instruments; sale of teaching equipment; sale of experimental analytical instruments; repair of instrument instruments; sale of electrical electronic devices; sale of pilot machines; sale of instrumentation for monitoring and detection of atmospheric pollution; sale of instruments for exclusive environmental monitoring; sale of instruments for environmental monitoring; environmental protection monitoring; sale of instruments for monitoring and detection of water quality; sale of instruments for monitoring and detection; sale of instruments for monitoring the ecological environment and detection; sale of chemical products (other than licensed chemical products); retailing of equipment; distribution of hardware products; retailing of appliances; sale of lighting equipment; technical services, technical advice, technology exchange, technology transfer, technology promotion (in addition to legal licensing)