MECHANICAL PROPERTIES OF THREE-LAYERED PARTICLEBOARDS WITH FACE LAYERS OF BEECH AND OAK PARTICLES AND A CORE LAYER OF CONIFER AND SUNFLOWER STALKS PARTICLES. Innovation in Woodworking Industry and Engineering design, [S. l.], v. 12, n. 2, 2026. Disponível em: http://innojs.ltu.bg/index.php/scjournal-inno/article/view/369. Acesso em: 25 feb. 2026.