The project is located in the municipal district of Sanya City, Hainan Province. The project area of this point-supported glass daylighting roof is about 25000m2, and it is supported by steel structure. The point-supported glass daylighting roof fitting adopts Hengan brand rectangular non-opening seam ball hinge joints. The joint ball joint is suitable for hyperboloid glass curtain wall simulated by triangular flat glass. The two ends of the glass room are separated by ball hinge joints by seams and fixed at the same time, suitable for various glass angles and different numbers of adjacent glass plates. The project was constructed by Guangdong Jingang Curtain Wall Engineering Co., Ltd.