The registration address of shandong tres steel marketing ltd. Is located in room b1 803-2 (a multiple photo) of the ariyun innovation centre, south of hunan province, east of the eastern corner of the city's town of gao xinhing, where the registration authority is known as the market supervision authority of the new technologies industrial development area of the city, represented by a legal person, and includes general items: sale of metal materials; sale of construction materials; sale of metal products; development of metal products; sale of mechanical equipment; sale of high-quality special steel materials; sale of construction steel products. (in addition to the legally authorized projects, the operation is carried out on an autonomous basis with a licence)。