The registered address of tin sung-sung science and technology ltd. Is located on tianshan road, new technology development area, in the non-singhai state, 6-1314. The registration authority is the administrative approval board for the new technology development zone, in the non-singi state, and its legal representative is liu xinglin. The activities include general projects: development of new materials technology; development of metal products; development of mechanical equipment; sale of metal materials; sale of metal products; sale of metal products; sale of fire-proofing materials; sale of plastics; sale of fire-fighting equipment; sale of electronics; sale of mechanical equipment; sale of machinery and electrical equipment in the first category; sale of household equipment; sale of equipment; sale of office equipment; sale of furniture; sale of specialized equipment for teaching purposes; sale of security equipment; sale of daily supplies; sale of experimental analytical instruments; sale of specialized equipment for environmental protection; sale of office supplies; sale of special labour protection items; sale of office equipment; sale of office equipment; sale of electrical equipment in the first category of medical equipment; sale of fire technology; sale of household goods; sale of security equipment; sale of security equipment