Why does the box weight shown on the invoice differ from the actual weight?
A small difference in box weight (e.g., 2.1 kg vs. 2.3 kg) is normal in corrugated packaging due to material tolerances and moisture absorption.
The weight shown on the invoice is a reference weight, calculated from the theoretical material grammage and standard sheet usage.
Because such variations are standard in the industry, producers do not list the actual measured weight of each batch on invoices.
Please rest assured the quality and performance of the boxes remain unchanged.