According to the latest postal code table issued by China Post Office, the postal code of Dujiangyan Talent Exchange Service Center is 6 1 1830. Postal code is a mail delivery address coding method compiled by postal department, which is used to identify the administrative division, street and house number of mail address, which is helpful to improve the accuracy and efficiency of mail delivery. The use of postal codes is not limited to mailing letters and express delivery, but also can be used in various occasions, such as filling out forms and registering accounts.