JYS's grid structure with bolt-sphere joints can be applied to airport terminal construction, sports arena construction and super mall roof construction. Bolt-sphere joints skillfully form a triangular structure system of interconnected structural elements, which vastly increases the firmness of the arc-shaped roof. This allows us to build any sphere shape roofs for our clients.

This grid structure with bolt-sphere joints makes a long span without spandrel girder. So it lowers the cost while not damaging the beauty.