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The steel fireproof door is made of steel material to make door frame, door fan skeleton and door fan panel. If the door fan is filled with material, it fills the human body with non-toxic and harmless fire insulation material, and is equipped with fireproof hardware accessories with a certain fire resistance door.
Class a fireproof door, fire resistance 1.5 hour fire door
Fireproof door is an important part of Fire-fighting equipment, and it is an important part of fire prevention in society.