Jean Quan, Zhangzhou City, Anhui Province: Let Quan, that is, the original glass spring. During the Qing Kangxi period, Zhizhou Wang Cikuilibeiquan side. The spring water is clear and cold, and the glycol is delicious. The four seasons are inexhaustible. The spring water is "Ganru, Ganru Glass", so it is also called "Glass Spring".