Oddiy eshiklarning funktsiyalaridan tashqari, yong’inga qarshi eshiklar ham yong’inning oldini olish, tutunni ajratish, yong’inni o’chirish va evakuatsiyadan himoya qilishning maxsus funktsiyalariga ega. Yong’in eshigi faqat belgilangan yong’inga chidamlilik vaqtida yong’in yaxlitligi talablariga javob berishi mumkin va yong’in yaxlitlik darajalari mos ravishda 1.0 soat, 1.5 soat, 2.0 soat va 3.0 soat.

metall eshik astragal,yong’in eshigi va oddiy eshik, yong’inga chidamli eshik tepish plitasi,metall eshik korpusi, metall eshikning pastki plitasi,

yong’inga chidamli eshik ishlab chiqaruvchisi, uy uchun yong’inga chidamli eshiklar, yong’inga chidamli asosiy eshik, yong’inga chidamli eshik materiallari,metall eshik astragal,yong’inga chidamli eshik qalinligi,metall eshik korpusi,yong’inga chidamli eshik 2 soat, yong’inga chidamli eshik 90 daqiqa,metall eshikning pastki plitasi,

yog’och yong’inga chidamli eshiklar, shisha bilan yong’inga chidamli eshik,metall eshik astragal,yong’inga chidamli eshik ul, yong’inga chidamli eshik turar-joy