Qingdao Yizhong Stadium was the first canopy stadium in China, with the membrane structure covering an area of about 30,000 square meters. The project adopted a flexible tensile structure, which was widely applied in the world, to maximize the use of materials. WS undertook the fabrication of steel structures, the installation works, and the cable-membrane installation and tensioning works for the canopy. The total weight of the steel structure for Yizhong Stadium was 2,670 tons and the installation height was up to 44 meters. WS’ employees utilized their great talents, developed a set of fabrication and installation processes through trial to keep installation clearance within 2 millimeters, thereby rising to fame and capturing the market.