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The function of the fire door is to effectively isolate the fire when the fire occurs, to avoid the spread of the fire. The material of the fire door is steel, wood, steel and wood materials, etc. No matter what kind of material are special refractory treatment, part of the fire door is also filled with green fire insulation material harmless to the human body, to increase the fire effect of the fire door

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commercial fire doors,fire door garage,doble nga pultahan sa seguridad nga puthaw nga adunay hardware, mga imahe sa mga pultahan sa kaluwasan nga kahoy alang sa mga patag, mga pultahan sa seguridad 820,double fire doors ,litrato sa pultahan sa kaluwasan, sulod sa 9 ka tiil nga pultahan,commercial fire doors,gimarkahan nga pultahan sa panel,

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