fire escape door,en door lock for fire door,industrial fire exit doors

Fire door is an important part of fire fighting equipment and social fire prevention. The steel fire door has low thermal deformation rate and low bending curvature after heating. When the fire is open, it can open and escape freely or close the smoke evacuation and wait for rescue.

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fire escape door,en door lock for fire door,industrial fire exit doors-Puerta ZTFIRE: puerta cortafuego, puerta ignífuga, puerta resistente al fuego, puerta resistente al fuego, puerta de acero, puerta metálica, puerta de salida