Chelik yong’inga qarshi eshikning muhrlanishi juda yuqori, eshik ramkasi va eshik bo’shlig’i qo’shimcha to’ldirishni amalga oshirish uchun yong’inga qarshi materiallardan foydalaniladi, po’lat yong’in eshigi nafaqat tutun tarqalishini izolyatsiya qilishning haqiqiy ta’siriga erisha oladi, balki yaxshi amalda ham erisha oladi. tovush izolatsiyasining ta’siri.

o’lchami 9 × 21 yoki 10 × 21 yong’inga chidamli temir eshiklar,po’lat eshik yong’inga chidamli,2 soat yong’inga chidamli eshik,3 soat yong’inga qarshi eshik, tashqi yong’inga chidamli temir eshiklar,o’lchami 9 × 21 yoki 10 × 21 yong’inga chidamli temir eshiklar,120 daqiqa yong’inga chidamli eshiklar,2 soat yong’inga chidamli eshik,yong’inga chidamli eshiklar,yong’inga chidamli eshik ramkasi,ul yong’inga chidamli eshik,o’lchami 9 × 21 yoki 10 × 21 yong’inga chidamli temir eshiklar,ekologik yong’in eshigi,yong’inga chidamli eshik ramkasi,oq 34 dyuymli yong’inga chidamli po’latdan izolyatsiyalangan eshik, ikki bargli yong’in eshigi,2 soat yong’inga chidamli eshik,yong’inga chidamli eshik ramkasi