This is called the first card! CCB credit cards are divided into levels, with only primary and secondary cards. All credit cards you apply for with China Construction Bank, no matter which card you have, are the main cards. If you apply for a card in your name for a family member (immediate relative), but the cardholder belongs to the family member, this is called an accessory card. Or if your family member applies for a credit card in your name for you, then you are an accessory card. Card people. Therefore, there is no distinction between primary and secondary, only primary and secondary. However, regardless of whether it is a primary card, an additional card, or both primary cards, the credit card limit under the same name of the same bank and person is exclusive. Of course, the functions of each card type are also different.