Yes. According to the information on the official website of China Construction Bank, the two cards of the daughter card and the master card are the only ones that can use the card limit, but repayment and credit reporting are the responsibility of the main cardholder, so the master card can be used to repay. The main bank card and the secondary card are also called the combination card series. On the surface, they are two different bank cards, but they belong to the same account. The two cards share one account, and the two are subordinate.