As long as your card has other signs besides the UnionPay logo, it must be double-marked.

VISA only provides US dollar settlement service, so your card with the VISA logo must be a card that supports US dollar settlement.

UnionPay supports RMB business.

Single-label card is a credit card with only one payment method, and double-label card is a card with two payment methods nested, generally UnionPay+1 overseas card organization, and the most common ones are Visa and MasterCard. Dual-label card is a product launched by Bank of Chinese mainland to solve the problem that card organizations outside China can't carry out RMB clearing and UnionPay's penetration rate outside China is insufficient.