Kunezinhlobo ezintathu zeminyango yomlilo yensimbi: Iminyango yomlilo yensimbi ye-Class A izoba nesikhathi sokumelana nomlilo esingekho ngaphansi kwamahora angu-1.5, iminyango yomlilo yensimbi ye-Class B izoba nesikhathi sokumelana nomlilo esingekho ngaphansi kwamahora angu-1.0, kanye nomlilo wensimbi we-Class C. iminyango kufanele ibe nesikhathi sokumelana nomlilo esingekho ngaphansi kwamahora angu-0.5.

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.