| 摘要 |
A set of metal sections (8, 9; 20, 21) has been developed for window and door frames, especially for window and door frames with sliding panels (3), comprising vertical and horizontal sections (8, 9) for a fixed frame (2) and vertical and horizontal sections (20, 21) for a movable frame (4), wherein joining brackets (29; 40) for corner joints (26) of said movable frame (4) are provided with means (33; 41, 42, 43) for supporting wheels (35) capable of guiding said panels (3) as they slide with respect to said fixed frame (2). |
