The registration address of tianjin ocean steel limited is located in zhonggang village steel market no. 13, han's village steel market, zhonggang village, north tianjin city. The registration authority is the north fat market supervision authority of tianjin city. The legal entity is represented by zhang hong jing, and operates on general items: sale of metal materials; sale of metal structures; sale of electronic products; sale of labour protection supplies; sale of office supplies; wholesale of hardware products; sale of metal products; installation services for ordinary machinery equipment; repair of metal products; metal cutting and processing services; manufacture of general equipment (excluding special equipment); manufacture of metal cutting and welding equipment; manufacture of metal tools; manufacture of hardware products; manufacture of steel delay processing; non-ferrous metal pressure processing. (in addition to the legally approved projects, operating on an autonomous basis of the law)