Beijing libra smart science ltd. Is registered at the 64th floor of south china road, 64th floor, beijing city, with the registration authority of the market supervisory authority of the tunzhou district, beijing, with legal representation at the sun yu ridge, and covers general projects: technical services, technology development, technical advice, technology exchange, technology transfer, technology promotion; mechanical equipment development; sale of mechanical equipment; sale of smart robots; development of smart robots; sale of mapping, computing and measurement instruments; sale of instrument instruments; sale of electronic measuring instruments; repair of instrumentation; integration of smart control systems; integration of information systems; sale of moulds; retail sale of gold products; sale of metal products; manufacture of machinery spare parts, spare parts; rental of machinery equipment; repair of general equipment; specialized equipment repairing; repair of electrical ...