The main building is a private customized service, headquartered near Chengdu, the jewelry trading center in western China.

Jewelry has a broad sense and a narrow sense. Jewelry in a narrow sense refers to jade products, while jewelry in a broad sense should include jewelry, handicrafts or other treasures made of gold and silver and natural materials (minerals, rocks, organisms, etc.). ) has a certain value, collectively referred to as jewelry. Therefore, the ancients said that there were gold and silver jewelry, which distinguished gold and silver from jewelry.