Cartons generally use three or five floors, and the seventh floor is rarely used. Each layer is divided into lining paper, corrugated paper, core paper and facial paper. The inner paper includes paperboard, kraft paper and corrugated paper for core paper. All kinds of paper have different colors and feel, and the paper produced by different manufacturers is also different.
Extended data:
The differences between cartons and packaging in foreign trade documents are as follows:
1. Different meanings: cartons are cartons and packaging is packaging. usually
2. Different uses: carton refers to the outer packaging box, generally packaging cartons, plastic boxes, etc. There is food and drink in the package.
3. Different capacity: Parcels are parcels, which are mostly used for checked or travel luggage, and have a large capacity. Cartons have small capacity.
Baidu encyclopedia-carton