To apply for a car card, only those cards with car card rights can have weekly car wash service. When you use it, go to the designated merchant to swipe your card. Tell the store how many times to wash the car with CCB car card when swiping the card. They will deduct the number of car washes this week on a dedicated POS machine and print out a list. The list will also say that the number of car washes will be deducted. If you want to know which shops in your area are designated car washing points, you can inquire through the mobile banking of China Construction Bank, click on the credit card channel on the home page of the mobile banking, and enter-preferential merchants-surrounding merchants-classified inquiry-and select all car washing merchants.