What kind of kiln porcelain has a thin glaze layer and various patterns?

Yixing kiln. Among all the porcelains, Yixing Kiln is famous for its unique thin blue glaze, full glaze layer and various patterns on the glaze. Yixing kiln is the ninth largest kiln system after Jingdezhen kiln system and other eight kiln systems in China. It is the only kiln system represented by pottery in China, and it can be called the first kiln system in China. China is the first country in the world to produce silicate products in kilns. In 3000 BC, there were caves for firing pottery in China.