ار Cartoon Sheet with a Congress Paper Layer
This sheet includes a layer of corrugated paper, which is placed between two liner papers, which form three layers in total. This type of cardboard sheet is also called three-layered.
ا Double -layered carton sheet (with a two -way congressional paper)
In this type of cardboard sheet, two layers of corrugated paper are placed between three layers of liner paper, which make a total of five layers. This type of cardboard sheet is also called five-layered.
ا Three -layer carton sheet (with three layers of congressional paper);
In this type of sheet, three layers of corrugated paper are placed between 4 layers of liner paper, which adds up to seven layers. This type of cardboard sheet is also called seven layers.