The bags bought by domestic counters are not fake. According to SF official website, click on the home page and search for the bags bought by domestic counters in the search box. Is the SF discount fake? I learned that the SF quotation of the package bought by domestic counters is not fake. SF, full name SF Holdings Limited, is an integrated express logistics service provider in China. Headquartered in Shenzhen, after years of development, it has initially established the ability to provide customers with integrated logistics solutions, not only providing logistics services at the distribution end, but also extending to the production, supply, sales and distribution links at the front end of the value chain. Starting from the needs of consumers, it uses big data analysis and cloud computing technology to provide customers with warehouse management, sales forecast, big data analysis and so on.