| 摘要 |
A thermally cut modular metal frame for doors and windows comprising two tubular sections which are coupled at least by means of a removable interconnecting element of an insulating material, wherein each of the two tubular sections, on its side facing the side of the coupled tubular section, is provided with equidistant openings. The corresponding end of a spacing stake is inserted and bayonet joined inside each of said openings, said stake being perpendicular to the surface of the coupled tubular sections. |
