| 摘要 |
The window or door wing has frame suspension hinge axis fittings allowin a choice of rotation alone, or both rotation and tilting, with the corresponding frame fittings fixed in position in prefabricated retainer frame-mounted catches, the wing and frame top and bottom bars being identically shaped. - One vertical frame bar (3) has identical top and bottom inside corner retainer catches (5), for matching or different frame fitting components (13), with at least the top component covering the catches concerned. In the case of a turning and tilting wing, on the bottom component where only part of the retainer catches is overlapped, the remainder is covered by the wing fitting component concerned. |
