The dragon card is a dragon pattern. According to the relevant public information on the website, Longka Changxiang Credit Card (hereinafter referred to as Longka Changxiang Card) is issued by China Construction Bank, which is mainly for customers who meet the requirements for issuing Longka Credit Card and have consumption abroad needs, and is only for overseas use. This card can be issued in sets or used separately. For example, if you apply for a set of cards, two main cards will be issued after approval and sent to users through two card letters. When a new customer applies for a credit card for the first time, he receives a face-to-face signing message from the bank. After receiving the first card, he goes to the outlet for face-to-face signing. The second card will be issued after the face-to-face signing is passed, and other customers can open the card directly after receiving the card.