1. The number of purchases and actual receipts must be checked to see if the outer packaging is broken or broken. If so, the number of small packages must be counted and the damage record must be made.
2. Carefully check the technical data and inspection report provided by it.
Check whether each product has a factory certificate or original label;
Check whether there is an inspection report provided by the Pulp and Paper Quality Supervision and Inspection Center (office) at the location of the supplier
3. Disassemble one or two pieces of Zhuhai kraft paper at random, and observe whether there are cracks, wrinkles, curls, etc. on its appearance. If there are such defects, you can directly request a return or exchange.
4. Use simple operation methods to check its quality.