West Gate of Zaolin Vegetable Market, Wancheng District, Nanyang City. According to Baidu map query, the pickle wholesale market is located at the west gate of Zaolin Vegetable Market in Wancheng District, Nanyang City, and Zhongyuelai Dried Vegetables and Pickles Store, which was called Wan in China, Nanyang in ancient times (now Nanyang City, Henan Province). Nanyang city is located in Nanyang basin, surrounded by mountains on three sides, and the word Wan reflects the basin landform of Nanyang. During the Spring and Autumn Period and the Warring States Period, it was known as Wancheng.