there is a red flag supermarket. The address is in Sanchen Street, Langzhong City. Hongqi Supermarket is a handmade vinegar produced by Langzhou vinegar industry in Langzhong City, and it is also a premium product. Hongqi Chain Chengdu Hongqi Chain Co., Ltd. was established on June 22, 2111. On June 9, 2111, the whole company was changed to Chengdu Hongqi Chain Co., Ltd.