CCB official website can inquire about specific car washing points, log on to the homepage of CCB Credit Card, select Longka Car Card in "Card World" on the left side at the bottom of the page, and then click "Inquire about national car washing outlets and integral oil changing methods" on the right side of the page, and select the provinces and cities where car cards are located in the map to inquire about all local car washing points. In addition, WeChat pays attention to "Longka Credit Card" and can also inquire.