| 摘要 |
Integrated door frame for internal door, which central portion forming door frame construction is element made of wood, plywood, wood-derivative panel or plastic, characterized in that, door frame construction (1) from outer side, parallel to the door rough opening walls plane has profile element (3) or (5) from door leaf side and profile element (4) from the opposite side of the door leaf, made of metal or plastic, connecting additional door frame construction (1) with wall (2) around door rough opening and has width adjusted to the thickness of the said wall. |
