Project Description
Fire-proof high security doors are manufactured by 3 m thick steel, and they are internally reinforced with extra strong beams.
The doors internally are covered with fire-proof materials with reaction to fire acording to A DIN 4102.
The locking system of the doors has a mechanical or electromagnetic lock, which is reinforced with a manganesae steel plate.
The door hinges operate with the help of ball bearings.
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