The name "Quanfude" was founded in the early years of Yongzheng in the Qing Dynasty. Because the Qing Dynasty had the view that the "Five Virtues" was the name. The Ming Dynasty was fire virtue, and the Qing Dynasty was water virtue, and water overcomes fire, so it was named the Qing Dynasty. The Quanfude font is therefore named. Since candied haws are a small business sold along the street, the "Quanfude" brand was protected (registered trademark) in 1997. It is currently the earliest brand of candied haws in China. The trademark belongs to Suqian Dewang Food Co., Ltd. The Quanfude brand gene is rooted in traditional Chinese culture, gathers energy and injects new blood with the aesthetics of this era to explore new cultural potential energy.

Suqian Dewang Foods mainly focuses on the research and development, production and sales of candied haws and frozen fresh fruits. In 2012, it moved from Beijing to Suqian Siyang Economic Development Zone with a registered capital of 8 million yuan. The factory covers an area of ​​20 mu, and it has built a standard freezing, quick-frozen, fresh-preservation warehouse and production workshop of 3,200 square meters.

Dewang Food has an independent candied haws single factory and a candied haws enterprise with export qualifications. The factory is adjacent to the fresh fruit raw material production area. Relying on the advantages of Shandong Fei County's own hawthorn base, it has gone from raw fruit picking, semi-finished product processing and storage; to finished product production Form a complete and mature supply chain. The company cooperates with cold chain logistics companies represented by SF Express and currently supports LTD distribution in most cities across the country.