Isakhiwo sesandwich somnyango womlilo kabili sinezinzuzo zesakhiwo esiqinile, ukubukeka okuhle nokusebenza okuhle komlilo. Emklamo wokuvikela umlilo wezakhiwo, ukuze kuthuthukiswe isikhathi sokumelana nomlilo, iminyango yomlilo enezingqimba ezimbili ivame ukusetshenziswa, njengezinqolobane zomlando, iminyango yazo yomlilo isebenzisa izendlalelo ezimbili.

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.