Sichuan Chengdu Shu Mingchu Catering Management Co., Ltd. Triangle cake is a snack from Tongliang, Chongqing. It has a unique taste and is simple to make. Chengdu Shu Mingchu Catering Management Co., Ltd. in Sichuan Province has professional training masters who provide one-on-one teaching until you learn it. The training fee is about 1,500 yuan. The specific cost is Depends on the length of study.