Manufacturing, sales, and leasing of lifting platforms, hoisting and transport equipment, and mechanical equipment; technology development, transfer, training, and consulting for lifting platforms and hoisting and transport equipment; sales of electromechanical equipment, instruments, hardware, engineering vehicles, and automobiles; property cleaning services; export business of self-produced products and technologies and import business of mechanical equipment, parts, raw materials, and technologies required by the enterprise; design, research, development, manufacturing, and sales of containers, pumps and vacuum equipment, gas compression machinery, valves, hydraulic and pneumatic power machinery and components, centrifugal equipment and parts, filtration equipment and parts, purification equipment and parts, drying equipment, and environmental protection special equipment; research services in mechanical engineering, power and electrical engineering, electronic technology, communication and automatic control technology, and aerospace science and technology. Licensed item: Production of road motor vehicles; installation, repair, and testing of power transmission, supply, and reception facilities. General items: Motor vehicle modification services; manufacturing of intelligent vehicle-mounted equipment; manufacturing of specialized equipment (excluding licensed specialized equipment); software development; sales of power electronic components; manufacturing of power electronic components; manufacturing of power facility equipment; sales of power facility equipment; manufacturing of electrical instruments; sales of electrical instruments; manufacturing of electronic measuring instruments; sales of electronic measuring instruments.