Fire door diagram composition
Fire-proof doors are composed of door frames, panels (filled with insulation materials), fire-proof hardware accessories, electromagnetic door catches and other components. The door leaves are connected through hinges, and the doors are equipped with door closers and fire-proof locks. The double doors also Install a concealed latch (installed on the side of the fixed fan) and a sequencer to prevent the overlap of the door leaves. There are fire detectors and fire linkage control systems that are linked to the normally open fire door.
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