Changshu Xinzhuang bazaar. According to the inquiry of Xinzhuang local treasure, it is known that Changshu Xinzhuang Kangxia is sold in Xinzhuang bazaar in Changshu City, which is named "Changshu" because of its "fertile soil and no floods and droughts" and is a national historical and cultural city. Changshu is located in the south of the Yangtze River, known as the "blessed land in the south of the Yangtze River" and is one of the birthplaces of Wu culture.