The project is located in Dafeng City, Jiangsu Province, with a total construction area of 21000 square meters. The grid structure has a length of 99 meters, a width of 95 meters, a maximum span of 81 meters, and a grid height of 4.3 meters. It is a positively placed square pyramid bolt ball and partially welded ball node grid, supported by a lower chord multi-point column. The projected plane of the structure is elliptical; The roof adopts 65/400, 0.9mm natural color vertical grain aluminum magnesium manganese alloy composite roof panels. Won the China Steel Structure Gold Award and the Zhejiang Province Construction Steel Structure Diamond Award.