Carton (hardton car case): It is the most widely used packaging product. There are corrugated boxes, single-layer cardboard boxes, etc. according to different materials. There are various specifications and models.

There are three layers and five layers commonly used in cartons. The seven layers are used less. The layers are divided into inner paper, corrugated paper, core paper, facial tissue, and paper, kraft paper, corrugated paper for core paper, and various paper. The color and feel are different. The paper (color, feel) produced by different manufacturers is different.