1) Corrugated cardboard sheets
Corrugated cardboard is produced by gluing corrugated paper with outer layers. Wavy layer - corrugated - in corrugated cardboard plays a key role in determining its functional properties. Hard wavy layer makes corrugated cardboard extremely strong and protective. There are microcorrugated cardboard: E, EW and corrugated cardboard: B, BW; C, CW; EC, ECW; BC, BCW; BE, BEW.

2) Different packages of all kinds of corrugated cardboard

Double-layer corrugated cardboard (corrugated rolls) consists of one outer (flat) and corrugated cardboard layer.

Triplicate corrugated pack has two external and one corrugated layer.

The five-layer corrugated cardboard consists of three flat and two corrugated layers.

Seven-layer corrugated cardboard consists of four layers of flat and three corrugated layers.