When is the collocation of Hetian jade double-sided longevity characters?

Hetian jade's double-sided longevity character belongs to the Qing Dynasty. According to relevant public information, the history of Hetian jade double-sided longevity can be traced back to the Qing Dynasty. It is an exclusive item of the royal family and is mainly used to pray for longevity and good luck. Hetian jade is one of the traditional jade carving crafts in Hetian, Xinjiang.