Technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; Manufacturing of hydraulic power machinery and components; Sale of hydraulic power machinery and components; Sale of pumps and vacuum equipment; Road freight transport of ordinary vehicles with a total mass of 4.5 tons or less (excluding network freight and dangerous goods); Information technology consulting services; Safety consulting services; Technology intermediary services; Import and export of goods; Installation services for general mechanical equipment; Manufacturing of mechanical and electrical equipment; Repair of electrical equipment; Sale of mechanical and electrical equipment; Sale of electrical equipment; Leasing of non-residential real estate; Manufacturing of special equipment (excluding licensed professional equipment manufacturing); Manufacturing of industrial automatic control system devices; Sale of hydraulic, pneumatic, and sealing components and systems; Sale of power distribution switchgear equipment. Licensed items: Road freight transport (excluding dangerous goods); Installation, modification, and repair of special equipment.