The registered address of shinkacheng science and technology ltd. In tianjin city is 150 metres north of the village of nobu, masuibashi township, tianjin district, with the registration authority being the district market supervision authority of xiazhou, tianjin city, represented by legal persons and covering general projects: technical services, technical development, technical advice, technical exchange, technology transfer, technology promotion; sale of construction materials; wholesale distribution of hardware; sale of construction machinery; sale of metal products; sale of chemical products (other than licensed chemical products); sale of steel products for construction; manufacture of metal accessories for construction; sale of metal spare parts for construction; manufacture of insulation and soundproof materials; sale of building ceramics; sale of light construction materials; sale of warm materials; manufacture of new building materials (other than dangerous chemicals); ma...