Foot silver. According to the query encyclopedia, ax in Zhou Dasheng stands for foot silver, which is a jewelry or handicraft made of pure silver, while Ax stands for the factory number or serial number of this foot silver jewelry. Chow Tai Sang Jewelry is a well-known jewelry brand in China. Founded in 1999 and listed on the main board of Shenzhen on May 20th1July. Brand insight into market demand, explore fashion trends, integrate style aesthetics, and exclusively develop "situational style jewelry", which has a large number of stores throughout the country.