24 x 80 fire rated door,fire rated automatic sliding doors,60 minutes fire resistance

Fire door frame refers to the door frame with fire resistance, which is usually used in conjunction with fire doors. In the event of a fire, fire door frames and fire doors can gain time for people to escape from the fire, prevent the spread of fire, and delay the spread of fire. Therefore, fire door frames and fire doors play a vital role in the occurrence of fire.

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