Two relatively complete celadon statues were found in the Shang tomb in Zhengzhou, Henan Province. This kind of porcelain is made of kaolin and coated with a thin transparent cyan glaze inside and outside. A celadon is 27 cm high and has several layers of thick glassy green glaze on its surface. Bright and smooth, the combination of fetal glaze is dense, and the firing temperature is higher, reaching more than 1200 degrees, which is full of porcelain characteristics. This Zhengzhou Shang Dynasty celadon statue is called the originator of China porcelain.