| 摘要 |
FIELD: construction. ^ SUBSTANCE: composite construction element, especially made in the form of wall, ceiling or roof element for house-building, includes several layers following each other as to height; at that, boards of the layers following each other as to height have various directions, and boards of one layer are attached to boards at least of adjacent layer by means of attachment pins made from light metal or synthetic material. Attachment pins are equipped with annular projections located at some distance from each other in longitudinal direction of attachment pin. ^ EFFECT: improving the connection between separate layers. ^ 10 cl, 12 dwg |
