The basic technology of bone China is a kind of porcelain made of animal bone charcoal, clay, feldspar and Shi Ying, which is fired twice by high-temperature plain firing and low-temperature glaze firing. The two basic characteristics of bone China are the essential basis for distinguishing bone China from other porcelains. Bone China is characterized by bone charcoal content of more than 36%, and the finished product is translucent.