China National Agricultural Exhibition Center, as one of the four largest exhibition centres in Beijing. Occupying an area of 52 hectors, NAEC consists of l0 exhibition halls in Chinese traditional architecture style and 7 light-duty showrooms with a total floor space of 30,000 sqm. The indoor height is 16 meter, net height of 9 meter, 14 entrances and exits (4.4 m x 4.7m). Totally can set up 650 booths with the size of 3 X 3, the new exhibition center floor space is 8,000 square meter.