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Kawneer is part of Arconic's global Building and Construction Systems (BCS) business unit. Kawneer's architectural aluminum product range includes windows and doors, framing systems, curtain wall systems, railings, shutters and conservatories. Kawneer products are used on high- mid- and low-rise non-residential buildings such as stadiums and ...
A door knocker is an item of door furniture that allows people outside a house or other dwelling or building to alert those inside to their presence. A door knocker has a part fixed to the door, and a part (usually metal) which is attached to the door by a hinge, and may be lifted and used to strike a plate fitted to the door, or the door itself, making a noise.
Crash bar doors in a school, with upper vertical rod latches. A crash bar (also known as a panic exit device, panic bar, or bump bar) [1] [2] is a type of door opening mechanism which allows users to open a door by pushing a bar.
A flush door is a completely smooth door, having plywood or MDF fixed over a light timber frame, the hollow parts of which are often filled with a cardboard core material. [citation needed] Skins can also be made out of hardboards, the first of which was invented by William H Mason in 1924.
In less than three weeks, President Donald Trump and Elon Musk have upended the federal workforce, firing top officials, grinding billion-dollar agencies to a halt and convincing tens of thousands ...
A door closer is a mechanical device that regulates the speed and action of a door’s swing. [1] Manual closers store the force used to open the door in some type of spring and reuse it to close the door. Automatic types use electricity to regulate door swing behavior. Door closers can be linked to a building's fire and security alarm systems. [2]
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