According to the map data of Gaode, Xiamen Dumplings Wholesale Department purchased goods from Xiamen Wang Xi Frozen Food Wholesale Department. There are also products such as wonton and steamed buns that can be wholesale.

Jiaozi originated from the ancient trough. Jiaozi, formerly known as Joule, was first invented by Zhang Zhongjing, a doctor in Nanyang, China, with a history of 1800 years.