2. "Customers with their own dragon car cards can only enjoy car wash service within the jurisdiction of their own branches, not across regions." This is the introduction of preferential car washing right on the credit card website of CCB.

3. It is recommended to call the customer service hotline to confirm the card branch.

4. Customers with CCB car cards can wash their cars at designated car washing points for free every year, once a year 100, limited to twice a week, and the annual fee for issuing cards is 200 yuan.