Some brand stores may sell brand-name products, which may be due to many factors, such as:
1. Brand authorization: Some brands may not fully authorize certain products, or the scope of authorization does not include certain regions or product types.
2. Price: Some brands may sell some products with lower prices to attract a broader market.
3. Product line: Some brands may sell products of other brands to enrich their product lines.
It should be noted that brand stores usually ensure that the products they sell meet certain quality standards, and may be responsible for the products they sell under appropriate circumstances. But for brand-name products, brand stores are not necessarily responsible for their quality, so they need to be carefully considered when buying.