Iminyango yomlilo ingahlukaniswa ibe yi-single-open and double-opening ngokusho kobukhulu bayo. Ububanzi bomnyango womlilo wamaqabunga amabili buzothinta ngokuqondile ukuzinza kwawo, ngakho-ke kuzoba nezidingo ezithile ngobubanzi. Kuye ngezinto ezibonakalayo zomnyango womlilo, kuzoba nezidingo ezahlukene zobubanzi bayo, ezisekelwe esakhiweni sokungathinti ikhwalithi nokusetshenziswa okuvamile.

Iminyango yomlilo ye-ZHTdoors, iminyaka engu-31 yesipiliyoni sokukhiqiza eminyango yomlilo kanye neWindows. Iminyango yomlilo eyinhloko ye-UL, iminyango yomlilo ye-EN, iminyango yomlilo ye-BS EN, njll., Sine-certification.ZHTdoors isekela i-OEM kanye ne-design yamahhala.Izinzuzo zethu: ikhwalithi enhle, intengo yefekthri, isevisi enhle.Siyakwamukela ukuthi uxhumane nathi.