1. Clean up the estimated name, unit price and total amount of raw materials and ask for an invoice as soon as possible.

2. Adjust the original "accounting" cost structure. In other words, the consumption of raw materials should be as real as possible, labor can be accrued more, and manufacturing costs should be obtained as much as possible.

3. About tax burden: If you are a general taxpayer of value-added tax, if the previously estimated raw materials are invoiced in a short time and must be scanned and certified, then the tax burden will definitely be low. If you are afraid that the tax bureau will make trouble, then these temporary invoices should be obtained as commonly as possible to avoid the problem of low tax burden.