Yong’in eshigi ishlab chiqarilganda va shakllantirilganda, u yong’inning oldini olish va tutun izolyatsiyasining yaxshi ta’siriga ega bo’ladi va yong’inga chidamlilik barqarorligi, yaxlitlik va issiqlik izolyatsiyasi talablariga javob beradi. Standart va standart yong’inga qarshi eshik ishlab chiqaruvchilari yuqori sifatli galvanizli zanglamaydigan po’lat plitalardan foydalanadilar, keyinchalik ular bosqichma-bosqich ishlab chiqariladi.

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