- 13
- Mar
yong’inga chidamli lyuk, yong’inga chidamli frp eshiklari, yong’inga qarshi eshiklar
Po’latdan yasalgan yong’in eshiklarini tayyorlash uchun ichki va tashqi materiallar, u plomba moddasi yoki tashqi po’lat bo’ladimi, tanlanadi.
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