(1) The all-in-one card can distinguish card levels based on the first 6 digits of the card number. \x0d\\x0d\ (2) All-in-one card with 16-digit card number: the first 6 digits of the regular card number: 955550, 622580, 622588, 621483 (UnionPay IC card or UnionPay M+ chip card); \x0d\\x0d\ (3) The first 6 digits of the gold card number: 622609 (UnionPay card), 468203 (VISA international card), 512425 (MasterCard international card), 621485 (UnionPay IC card); \x0d\\x0d\ (4) Golden Sunflower Card (VIP VIP) The first 6 digits of the card number: 621286 (UnionPay card), 410062 (VISA international card), 524011 (MasterCard international), 621486 (UnionPay IC card). \x0d\\x0d\Supplement: \x0d\1. China Merchants Bank ordinary debit card, 19-digit card number; \x0d\2. China Merchants Bank credit card and wealth management card, 16-digit card number.