Automation control system integration; design of electrical automation systems and devices; manufacturing, sales and technical consulting services of environmental analysis instruments, instrumentation, electrical automation equipment; design, manufacturing, sales and technical consulting services of hybrid integrated circuits and microelectronic devices, functional materials and components, automobiles and motorcycle parts, mechanical equipment, rail transit equipment and parts; design, manufacturing, sales, system integration, installation, debugging and technical consulting services of environmental protection equipment; complete design, operation and maintenance, installation and commissioning, management and technical consulting services of municipal and environmental protection engineering systems. General items: import and export of goods; import and export of technology; import and export agency