Where can I get the sewage treatment invoice in Cangzhou?

There should be no restrictions on the types of invoices issued in the tax hall.

As long as there is a real trade background and the relevant contracts are consistent with the service content, they can be opened. As long as you have a contract, it is clearly stated in the contract that it is sewage treatment, you can issue it.

Sewage treatment is to use various technologies and means to separate and remove pollutants contained in sewage, recycle them or turn them into harmless substances, so that water can be purified. Modern sewage treatment technology can be divided into three categories: physical treatment, chemical treatment and biological treatment. According to the degree of treatment, it can be divided into primary treatment, secondary treatment and tertiary treatment, which is sometimes called advanced treatment.