The appearance color of gold silk handicrafts is white and brown, and there is strong gold mercerization in the brown belt. The overall appearance is like a pattern composed of cars and ditches, which is quite similar to the shape of Tai Chi, so it is called gold wire.
As the largest shellfish in the deep sea, Trionyx sinensis is a crustacean with a large and thick shell, usually white or yellowish, smooth and several inches thick. It is an excellent material for jade carving.
Manjianghong, pearl, coral and amber are called the four organic gems in the west, and Buddhism in China is also regarded as one of the seven treasures together with gold, silver, colored glass, agate, coral and pearl.