UL 10b Fire Tests Of Door Assemblies,Fire Rated Metal Door Jambs,Fire Door Install

When installing fire doors, sealant strips will be installed between the door leaf and the door frame to prevent smoke diffusion. In case of fire, the passage where the fire door is located will become an escape way, so in the early stage of fire, it must be ensured that the fire door can be opened.

UL 10b Fire Tests Of Door Assemblies,Fire Rated Metal Door Jambs,Fire Door Install-ZTFIRE Door- Fire Door, Fireproof Door, Fire rated Door, Fire Resistant Door, Steel Door, Metal Door, Exit Door

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