Nanyangyu, also known as dushan jade or Nanyu, is produced in Dushan in the north of Nanyang City, Henan Province. It is one of the four famous jade in China. Dushan jade is hard and dense, delicate and soft, with transparent luster and various colors. There are six kinds of pigments, including green, white, yellow, purple, red and white, and 77 kinds of colors, which are the first-class raw materials for jade carving. Dushan jade carving has a long history. 1959 The jade shovel produced in the Neolithic site of Huangshan Mountain near Dushan proves that Han ancestors knew and used dushan jade as early as 5,000 years ago. The site of Yujie Temple at the foot of Dushan Mountain is the place where jade articles were carved in Han Dynasty. In the Qing Dynasty, the Records of Newly-built Nanyang County recorded that the residents in the northern part of the old county made a living by managing jade articles. In old China and Nanyang, jade carving has formed a big industry. There are more than 80 workshops in the city, most of which are located in the back, with shops in front, selling their own carvings. Jade carving products mainly include figures, flowers, birds and beasts, landscapes, statues, furnace smoke, jewelry and so on 120 varieties. Jade carving alone is crystal clear and exquisite, and it is a famous product in Nanyang. Zhenping county holds a large-scale international jade carving festival every year, which attracts many domestic and foreign merchants. Nanyang jade carving enjoys a high reputation in the world.