Introduction to Badufang: Badufang is also called "Chanyuan Famous Valve Square". The square is a bluestone structure, which is made up of stacked stone strips and stone pillars. It is integrated, upright, majestic, sturdy and earthquake-resistant. The monolithic crossbeam at the top is carved with three large characters of "Badufang" two feet square. It was written by Wei Daqin, a famous calligrapher at that time. The writing style is powerful and powerful, which can be called top grade.