Po’lat yong’inga qarshi eshikning bargi va eshik ramkasi o’rtasidagi qoplama 10 mm dan kam bo’lmasligi kerak va barg va eshik ramkasi orasidagi har ikki tomonning bo’shlig’i 4 mm dan oshmasligi kerak. Yong’in eshigi o’rnatilgandan va yopilgandan so’ng, bo’shliq juda katta bo’lmasligi kerak, aks holda yong’in eshigining havo o’tkazmasligini kafolatlash qiyin bo’ladi va yong’in va tutunning olov ostida tarqalishini bostirish funktsiyasini aks ettirish qiyin bo’ladi. sharoitlar.

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