youyou group, activates code mall, integrates the internet, and has a variety of marketing software. based on the original intention of green marketing and healthy marketing, it provides users with a safe, convenient and efficient marketing tool, creating a one-stop display, product selection, card purchase, worry-free after-sales service, and a self-service software platform for all series. i promise to change the product if i am not satisfied. i promise - i will do it!