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Po’lat yong’in eshigi eshik ramkasi, eshik bargi ramkasi va paneli yasash uchun po’lat materialdan yasalgan. Ichki makon toksik bo’lmagan va zararsiz yong’in va issiqlik izolyatsiyasi materiallari bilan to’ldirilgan. Uskuna sanoati zanglamaydigan po’latdir, u ma’lum bir yong’inga chidamliligiga ega. Chelik yong’inga qarshi eshiklardan uzoq muddatli foydalanish tez-tez ochilishi va yopilishi tufayli sifat muammolariga olib kelmaydi.

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