Jianzhan is a famous traditional porcelain of Han nationality and a tea set used by the royal family in Song Dynasty. Most of them have big mouths and small bottoms, and some are shaped like funnels; Moreover, most of them are circled and shallow, and the foot roots often have chamfers. The shape is simple and vigorous, the feel is generally heavy, and there are tiny pores in the fetus, which is beneficial to the heat preservation of tea soup and suitable for the demand of tea fighting.

Jianzhan is a famous traditional porcelain of Han nationality and a tea set used by the royal family in Song Dynasty. Most of them have big mouths and small bottoms, and some are shaped like funnels; Moreover, most of them are circled and shallow, and the foot roots often have chamfers. The shape is simple and vigorous, the feel is generally heavy, and there are tiny pores in the fetus, which is beneficial to the heat preservation of tea soup and suitable for the demand of tea fighting.