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commercial fire doors,double fire doors,commercial fire doors

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

commercial fire doors,double fire doors,commercial fire doors-ZTFIRE Door- Fire Door,Fireproof Door,Fire rated Door,Fire Resistant Door,Steel Door,Metal Door,Exit Door

commercial fire doors,ගිනි ශ්රේණිගත දොර කික් තහඩුව,double fire doors,commercial fire doors,

commercial fire doors,fire door garage,දෘඩාංග සහිත ද්විත්ව වානේ ආරක්ෂක දොර, මහල් නිවාස සඳහා ලී ආරක්ෂිත දොරවල්වල රූප, ආරක්ෂිත දොරවල් 820,double fire doors ,ආරක්ෂිත දොර ඡායාරූපය, අඩි 9 දොරවල් අභ්යන්තරය,commercial fire doors,ලේබල් කරන ලද පැනල් දොර,

wooden fireproof doorshollow,commercial fire doors,හදිසි පිටවීමේ දොර භාවිතය, ගිනි ශ්‍රේණිගත දොර උල්, ගිනි ශ්‍රේණිගත දොර නේවාසික