The registration address of tianjin billion science and technology ltd. Is located in room 301-31, building no. 16, creative industries park, zinnam township, zinjin city, with the registration authority being the market supervision authority of zinnan district, tianjin city, with legal representatives representing zhao lanqing and covering general projects: technical services, technology development, technical advice, exchange of technology, technology transfer, technology diffusion; sale of hydraulic machinery and components; hydraulic machinery and component manufacture; steel-relay processing; non-ferrous metal pressure extension processing; metal cutting and processing services; sale of special equipment; sale of metal structures; import and export of technology; import and export of goods; sale of mechanical equipment; sale of axle; manufacture of electrical equipment; manufacture of containers; construction of metal structures; manufacture of electrical facilities; sale of electrical equipment. (in addition to projects subject to authorization under the law, the operation of the business is carried out autonomously under a licence)