To check the bank number, you can go to the Zheshang Bank website. In the middle of the left side of the website, there is an online query. Select the second one below to query the modern payment bank number. All bank numbers across the country can be found here. Tianjin Bank should be looked up among city commercial banks.

After checking, the bank number of Bank of Tianjin is 313110000017

This is the bank number of the head office of Bank of Tianjin, and the bank numbers of each branch below are different.