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- Dec
keep clear fire exit door,can a sliding door be used as a fire exit,automatic fire exit door
The reason for the fire resistance of fire doors is very simple, mainly the use of inorganic non-combustible materials other than steel, refractory wood or refractory wood products. Fire doors only play a temporary role in resisting the spread of fire, and the specific fire resistance time depends on the fire resistance of fire door materials and fillers.
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