Chelik yong’inga chidamli eshikning ichki plomba moddasi yong’inning oldini olish va olovni ushlab turishda eng yaxshi rol o’ynashi mumkin va tashqi tomondan ichki materiallarni eng samarali himoya qilishi mumkin. Har xil turdagi po’latdan yasalgan yong’inga qarshi eshiklar turli joylarda ishlatilishi mumkin.

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