Manufacturing, processing, repair, sales, and installation; mechanical equipment (including hydraulic machinery), hydraulic cylinders, hydraulic hoses and rigid pipes, equipment connectors, hydraulic accessories, pneumatic cylinders, pneumatic components, pumps, valves, integrated hydraulic stations, hydraulic tools; electrical equipment, instrumentation, hardware and electrical products, high and low voltage complete equipment, automotive parts and accessories, railway rolling stock parts and accessories, railway specialized equipment and parts, electric vehicle parts and accessories, precision aluminum alloy structural parts, communication electronic equipment, new energy equipment and parts, artificial intelligence equipment; non-ferrous metal rolling and processing (excluding rare and precious metals); providing technical consulting and technical services for the above products; vehicle engineering technology research and development.