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 yong’in eshiklarini ishlab chiqarish yuqori sifatli galvanizli zanglamaydigan po’lat plitalardan ishlab chiqariladi, keyinchalik ular bosqichma-bosqich ishlab chiqariladi.

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