Steel fire doors are divided into three grades: A, B and C according to their fire resistance. Different grades of steel fire doors can be used in various places.

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yong’inga chidamli eshik ishlab chiqaruvchisi,red fire safety doors,Uskuna bilan ikkita temir xavfsizlik eshigi,readymade safety doors,yuqori sifatli po’lat xavfsizlik eshigi,safety doors steel,old po’lat xavfsizlik eshigi, nozik po’lat xavfsizlik eshigi, yong’inga chidamli eshik 90 daqiqa, etiketli panelli eshik,

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