metal door astragal,metal door casing,metal door bottom plate
In addition to the functions of ordinary doors, fire doors also have special functions of fire prevention, smoke separation, fire suppression and evacuation protection. The fire door can only meet the requirements of fire integrity within the specified fire resistance time, and the fire integrity levels are 1.0h, 1.5h, 2.0h and 3.0h respectively.
metal door astragal,fire door vs normal door,fire rated door kick plate,metal door casing,metal door bottom plate,
fire resistant door manufacturer,fire resistant doors for home,fireproof main door,fire proof door material,metal door astragal,fire rated door thickness,metal door casing,fire rated door 2 hour,fire rated door 90 minute,metal door bottom plate,
wooden fireproof doors,fire rated door with glass,metal door astragal,fire rated door ul,fire rated door residential