You can swipe your card at the corresponding machines and merchants that support it. If it is a VISA card, you can swipe your card at VISA merchants and machines, and so on.
Take China Merchants Bank as an example:
According to Article 14 of the "Credit Card Regulations of China Merchants Bank (Ninth Edition)"
Card holders can (Including Hong Kong, Macao and Taiwan, the same below) with the acceptance logo of UnionPay, Visa, MasterCard, JCB, American Express or other bank card organizations, or domestic merchants with the UnionPay acceptance logo and other designated by the card issuer Spend with the card at a special merchant;
Withdraw cash in local currency at overseas cash withdrawal outlets or ATMs with the acceptance logo of UnionPay, Visa, MasterCard, JCB, American Express or other bank card organizations; Withdraw RMB cash at domestic ATMs with the UnionPay acceptance logo or at cash withdrawal outlets or ATMs designated by the card issuer, and enjoy other services provided by the card issuer. Corporate cards cannot withdraw cash.
Extended information:
Relevant provisions of "China Merchants Bank Credit Card Regulations (Ninth Edition)"
Cardholders can use their cards to carry Visa and MasterCard overseas When making purchases at specially designated merchants with UnionPay acceptance marks such as JCB or American Express, you only need to sign the same signature on the purchase form as in the signature column on the back of the card;
Special merchants with UnionPay acceptance marks overseas or in When making domestic purchases, the cardholder must enter or do not need to enter the password as agreed with the card issuer in advance, and sign the same signature on the purchase form as in the signature column on the back of the card. However, the cardholder and the card issuer have other agreements or acceptances. Unless otherwise specified by institutions or bank card organizations.
Cardholders must present a valid ID when withdrawing cash at overseas cash withdrawal outlets and enter a password when withdrawing cash from ATMs; cardholders must enter a password when withdrawing cash at domestic cash withdrawal outlets and ATMs, and must present a valid identity when withdrawing cash by pressing an order. Documents.
China Merchants Bank-China Merchants Bank Credit Card Regulations (Ninth Edition)