FIELD: forestry industry. SUBSTANCE: lumber is divided in the longitudinal direction into parts from which the pithy layer is removed for example, by means of milling. The obtained fellings are strengthened with the aid of steam-softening and bending or pressing. Then, bonding the parts together, lumber products are obtained. The bulk lumber products are formed by means of its bonding together out of the remaining parts. EFFECT: enhanced efficiency. 10 dwg
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