What are the three-character old objects?

1, jade bracelet processing technology is a special technology. Jade bracelet craftsmen in past dynasties regarded their own bracelet processing technology as an ace in the hole and never spread it out, so this technology is quite closed. With the continuous development and exploration in the field of jade jewelry, jade bracelets have also developed from simply processing jade and nephrite to processing low-grade jade such as jade.

2. Ink painting is a painting made by mixing water and ink into different shades of ink, which is a form of painting. More often, ink painting is considered as the representative of traditional painting in China, that is, Chinese painting. Also known as Chinese painting, Chinese painting. Ink painting is one of the traditional paintings in China. Ink painting is the origin of Chinese painting, and the basis of Chinese painting is pen and ink technique.