Fire doors must have reasonable material selection, good structure and reliable fire resistance. Remember not to keep the fire door open for a long time, nor block or lock the fire door.

20 minute steel  fire rated door,brand new fire resistant doors with accessories,درب کشویی درجه حرارت عایق حرارتی،18 gauge fire resistant metal door,درب تجاری فولادی ضد حریق،brand new fire resistant doors with accessories,خروج اضطراری قیمت درب آتش نشانی،20 minute steel  fire rated door,درب اتوماتیک ضد حریق،18 gauge fire resistant metal door,درب دو تاشو ضد حریق،20 minute steel  fire rated door,درب ضد حریق 60 دقیقه ای18 gauge fire resistant metal door,brand new fire resistant doors with accessories