Introduction to the four districts of Yiwu International Trade City: The market in the four districts of Yiwu International Trade City has a construction area of ​​1.08 million square meters and 16,000 stalls. The first floor of the market sells socks; the second floor sells daily necessities, gloves, and hats. categories, needle cotton; the third floor sells shoes, ribbons, lace, ties, woolen yarns, and towels; the fourth floor sells bras, underwear, belts, and scarves.