<p>The device has a base-body (10) including a planar-shaped body (1), and another planar-shaped body (2) with free ends (3, 4) placed on a concave side (7) of the base-body during applying a bending load on the former body. The latter body is mounted in a longitudinal direction of the former body. The ends of the latter body are moved against on blocks (5, 6) that are provided in the base-body during applying the selectable bending load on the latter body for forming combination of bodies that are coupled in a bending mold.</p>
