| 摘要 |
Profiled metal sections provide door aperture framing/fixing to enable walls (3,3') to be in place before pre-finished door panels (1) and their suspension rails (7) are installed. The essential components are a channel section (6) forming a gantry with two end pillars for the door aperture and an extruded slide-rail (7) whose flanges engage the clips (8) along the channel (6) anchored by screws (9) and masked by the lintels (20). |
