Design, development, production, and sales of swing platforms, electric push rods, screw lifts, electric servo cylinders, leveling mechanisms, lifting rods, robots, drones and drone control systems, aircraft supporting equipment, special machine tools, antenna lifting, tilting, and flipping equipment, antennas, pan-tilt units, chassis, cabinets, operating consoles, operating stations, and accessories; production and sales of electromechanical and hardware products; machining; design and development of electronic network equipment; sales of metal materials; development, production, sales, and technical services of computer software and hardware, intelligent power distribution systems, automation control systems, and software; system integration services; installation, commissioning, repair, and maintenance of electromechanical equipment; modification of shelter vehicles, motor vehicles, and special vehicles; vehicle inspection, maintenance, and repair; car and machinery leasing; import and export of goods, technology import and export, and agency import and export.