In September 2016, the eleventh summit of G20 leaders was held in Hangzhou, China. It was the first time that China held the G20 summit. As the main venue of the G20 summit, the Hangzhou International Expo Center covers an area of 190 thousand square meters. The main building consists of 5 floors on the ground and two floors in the ground, with a total floor area of 850 thousand square meters. Fulda high-end closers shine among them, for the construction of security escort.