Because according to the eye investigation, there are many chain stores for roasted oysters, and there are shops called roasted oysters in many places, so roasted oysters are chain stores.

Chain stores refer to many small-scale, scattered retail stores with the same brand and similar goods and services. Under the leadership of the headquarters, they adopt the same business policy and consistent marketing actions, implement the organic combination of centralized procurement and decentralized sales, and realize the combination of economies of scale through standardized operation.