Liufu duck, e-Puduo, playing string and other brands. Jiujiuya is a pot-stewed brand under Shanghai Dingyu Food Co., Ltd. Founded in 2002, the company has been focusing on the processing and sales of duck by-products, and its products such as duck neck and duck wings are spicy and refreshing, which are deeply loved by consumers. Jiujiuya has not only gone through 20 years smoothly, but also become a representative brand of top-class pot-stewed flavor. Before that, there were brands such as Lefu Duck, E Puduo and Playing String.