国产成人精品无码片区在线观看,性色AV极品无码专区亚洲,亚洲娇小与黑人巨大交,日本欧美一区,亚洲熟妇丰满xxxxx

This technology wins the National Science & Technology Progress Award. It solves problems of integration of simulation, stretching and design of carved large span one-way and two-way string structure construction and cable tension test of truss, providing an ideal solution for large spanning construction of complicated roofing. The largest one-way string and suspend-dome structure in China and two-way string and cable- truss supporting suspend-dome structure of the largest span worldwide are all created by JINGGONG STEEL.

National Gymnasium, Beijing, China

Harbin International Conference & Exhibition Center, Heilongjiang, China

Jinan Olympic Gymnasium, Shandong, China

Ejin Horo Banner Sports Center, Inner Mongolla, China

Nanjing Exhibition Center, Jiangsu, China

Changzhou Gymnasium, Jiangsu, China