Yong’in eshiklarining yong’inga chidamliligining sababi juda oddiy, asosan po’latdan, o’tga chidamli yog’ochdan yoki o’tga chidamli yog’ochdan yasalgan buyumlardan tashqari noorganik yonmaydigan materiallardan foydalanish. Yong’inga qarshi eshiklar faqat yong’in tarqalishiga qarshi turishda vaqtinchalik rol o’ynaydi va o’ziga xos yong’inga chidamlilik vaqti yong’inga qarshi eshik materiallari va plombalarning yong’inga chidamliligiga bog’liq.

keep clear fire exit door,yong’in eshigi va oddiy eshik, yong’inga chidamli eshik tepish plitasi,can a sliding door be used as a fire exit,automatic fire exit door,

yong’inga chidamli eshik ishlab chiqaruvchisi,fire exit door keep clear, yong’inga chidamli asosiy eshik, yong’inga chidamli eshik materiali,can a sliding door be used as a fire exit,yong’inga chidamli eshik 90 daqiqa, 600 mm metall eshik,automatic fire exit door,

yog’och yong’inga qarshi eshiklar,keep clear fire exit door,metall eshik 36 x 80, yong’inga chidamli eshik ul, yong’inga chidamli eshik turar-joy