Excuse me, where can I eat or shop in China? You can swipe your visa single-label credit card for answers.
Places with many foreigners, large supermarkets, hotels, scenic spots, etc. If this kind of merchants need to use foreign card to collect money, they can apply for this kind of foreign currency card POS machine in the bank, and then they can use foreign currency cards such as VISA/MasterCard/AE/DC/JCB.