General projects: R&D, design, production, sales, installation, maintenance and related technical consultation and technical services of automation equipment, electromechanical equipment, mechanical equipment, machine tool auxiliary equipment; system integration, design, and programming of industrial automation systems and automated assembly lines; debugging of electromechanical equipment and related after-sales services; import and export of goods and technology; sales: instruments, valves and pipe fittings, Wujinjiaodian, hardware tools, building materials, and decorative materials (the above two items do not include hazardous chemicals).