There is an emperor's throne deep in the Hall of Supreme Harmony, which is often called "Dragon Chair", and its official name is _ (Xiu) Golden Carved Flowers and Trees Dragon Chair. Although it looks golden, this chair is not made of gold, but a wooden chair. Because the son of heaven sits on it, the wood used is by no means ordinary wood. Instead, use precious rosewood as a frame, and then embed birch boards in it. In addition to rosewood, the main part is made of golden nanmu, which is as precious as gold. Besides wood, this dragon chair also uses some brass.