For example, I have a credit card in Zhang Guangfa. When I want to apply for a new Bank of Communications credit card, I can use Guangfa as the application materials. This is because the applicant's credit card information has been recorded in my credit file. When issuing a new card, the issuing bank will check the above information online. If the credit record is good, the chances of approving the card will be much higher.
To apply for a card with a card, you need to provide your existing credit card and provide a copy or photo. Other processes are basically the same as ordinary card applications.