Workers install cross-beam steel for the Shuangyumen bridge in Zhoushan, East China's Zhejiang Province, on November 12, 2024. The main span of the Shuangyumen bridge is 1,768 meters, making it the world's longest single-span, single-tower suspension bridge with a steel box girder, as well as the bridge with the longest span across the sea in China. Photo: VCG