How to fill in the specifications and models of the property service invoice?

Specifications and models are not filled in.

Because invoices should be issued in accordance with the prescribed time limit, sequence and columns, all copies should be truthfully issued at one time and stamped with the special seal for invoices. When other units and individuals issue invoices, they must fill them in the order of numbers, with complete items, true contents and clear handwriting. All copies are printed once, and the contents are exactly the same, and the invoice and deduction copies are stamped with the special seal for invoices. So you don't have to fill it out.

If it is a sales category, the suggestion is to write. If it is a general taxpayer, it is best to write. Sometimes the tax bureau makes a comparison. If there is no one, there is no need to write.