There are 8 exhibition halls, look at the booth distribution map, a symmetrical four-leaf clover shape. According to the exhibitor directory provided by the organizer, the number of enterprises in Halls 1, 2 and 3 is small, a **** 662, Hall 4.1 (1st floor of Hall 4) is an international exhibition hall with 619 enterprises, Halls 5.1, 6.1, 7.1 and 8.1 have 589, 589, 784 and 672 enterprises respectively, and there are 3,915 enterprises in a ****.