Focusing stoves consist of three layers. They are made from «wood wool», that is, chips obtained from coniferous wood. This chip can reach the length of nine centimeters. The main difference from similar materials from the OSB plate is a different orientation in the structure of the plate of the used chips. The direction of the location of the chip in the outer layers corresponds to the length of the plate. In the middle layer of the chip is perpendicular to it. It is the different orientation of the layers of layers that ensures very high mechanical strength of the OSB slabs. In terms of strength, the OSB is three times higher than the plywood and chipboard, and at the same time completely retains the flexibility characteristic.
