Discovery and Casting Technology of Ancient Copper Coins in China

People in China have a long history of using money, probably starting from the late Neolithic period, but in the pre-Qin period, precious metal-copper was gradually used to make money.

In China, the casting of ancient money mainly used die casting technology. With the development of science and technology, three processes have been adopted, namely, flat die casting, overlapping die casting and mother money casting.