Rolled Steel Windows

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Hope's® Sets New Standard with Patented Thermal Evolution ...
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A roller shutter, roller door or sectional overhead door is a type of door or window shutter consisting of many horizontal slats (or sometimes bars or web systems) hinged together. The door is raised to open it and lowered to close it. On large doors, the action may be motorized. It provides protection against wind and rain. In shutter form, it is used in front of a window and protects the window from vandalism and burglary attempts.


Hope's® Sets New Standard with Patented Thermal Evolution ...
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Applications

Roller shutters have many applications, including doors for vans, garages, kitchens, schools, prisons and warehouses. In some parts of the world, roller shutters are subsidized by local governments. In areas that are frequently exposed to inclement weather, roller shutters are used as a method of insulation, can protect windows against hail damage, and can be made to withstand high wind.


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Types and operation


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Components

  1. Spring wire. Made from the spring wire, it also called torsion spring.
  2. Flat spring. Formed by hardened and tempered steel strips in coils. Common steel grades C67, CK67, SAE1070, etc.

Source of the article : Wikipedia



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