Branches are based on a region, such as Shanghai branch, Beijing branch and sub-branch. For example, XX Road Sub-branch, the business department is the business outlet that provides customer transactions, and of course there are headquarters, accounting centers, credit card centers, development centers, training centers and many others. For example, the business department of beijing east road Branch of Bank of Communications is a branch of the business department in beijing east road. I don't know the treatment, and it's hard to say whether I know it or not.