Shacman has the largest export authorization in the country for the sale of heavy gas cards. The registered address of shacman's largest export-licensing enterprise is located at 1027, 10th floor, 10th floor, 10th floor, of the international centre of west kingslow west, economic technology development area, xian province. The registration authority is the market supervision authority of the city of xian, with representatives of legal persons acting in the form of construction, including the production of vehicles and machinery for spare parts, import and export of goods and technology。