Are Cui Kai's hats all submerged?

Be submerged. Variety characteristics: cross-pointed, dense lines, bottomed, long umbilical cord, particularly good bones, can be submerged. Cui Kai prince hat is a kind of walnut grafted in Wan Wen, which was first discovered and successfully grafted by Cui Kai in Chang 'anzhuang, Laishui, Hebei. Therefore, it was named Cui Kai Gongzi Hat, which originated from Hebei Zhuolu.