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non-combustibility and fire-resistance

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By application

Fire-resistant doors

Fire-resistant doors are doors with a special construction that prevents the rapid spread of flames, smoke and heat flow. These doors are divided into groups according to fire resistence - it is a time period for them the doors withstand flames and high temperatures.This time period is displayed in minutes in the base value scale 15, 30, 45, 60, 90, 120, 180. 

Grenamat B, C or AL boards are used as a filling or cover in fire-resistant doors due to required for fire resistance.