HD picture of local details of moiré copper ban

Sanqian Picture Network has carefully selected a set of high-definition pictures of local details of the moiré copper ban for everyone.The entire ban is cast using the lost wax method.According to the literature, the earliest time when the lost wax method was used in China was in the early years of the Tang Dynasty - Tang Huiyao - it is said that the lost wax method was used to cast Kaiyuan Tongbao during the Wude period of Emperor Gaozu.