Chicken heart: This variety is heart-shaped and as small as a chicken heart, hence its name. The grain is mainly dot-shaped, and the upper part of the rib is high and the lower part is low. The texture is hard, the sound is crisp, the structure is compact, the hardness is high, and the coloring is slow. Mainly produced in Hebei and Shaanxi.
Official hat: named for its shape like the hat worn by Ming officials when they went to court, it is short and solemn, with a dot-mesh bulge, wide and straight edges, sharp and round. There were rumors that there was an official hat in hand and you wanted whatever you wanted. It is mostly produced in the eastern part of Yan Qinling.
Prince hat: Also called "xianggong hat", because of its high double edges and low shape, it looks like a hat worn by scholars "xianggong" in Beijing Opera. It is characterized by rapid sizing and is mainly produced in the northwest of Beijing and Laishui, Yixian and Chengde in Hebei Province.