1. Enquiry of Gansu Bank in official website: Enter official website of Gansu Bank, and enter relevant information, such as region and specific address, on the "outlet inquiry" page of the website, and you can find the bank number information of Gansu Bank in this region.
2. Consult the customer service of Gansu Bank: You can call the customer service phone of Gansu Bank to inquire about the bank number information of the bank. Customer service telephone number can be found in official website, Gansu Bank.