What are the first two digits of Xuzhou Hua Gang gas users?

The gas users with the number "Xuzhou Hua Gang" look for the first two numbers as follows:

1, first find the installation location of your own gas meter, and then look at the gas meter. There is a letter beginning with No at the top of the LCD screen, followed by a series of numbers, which is your own refueling number.

2. The invoice for paying the gas fee before can be found out. At the beginning of the fourth line of the invoice, there is a user number followed by a specific number.