Umnyango we-fireproof unezici zokubukeka okubushelelezi nokushelelayo, ukubukeka okuhle, ukuvulwa okuguquguqukayo, ukuqina, ukusebenza okulula, ukuphepha nokuthembeka. Kunezinhlobo eziningi zeminyango yomlilo, njengeminyango yomlilo yamapulangwe, iminyango yomlilo yensimbi, iminyango yomlilo yensimbi neyezinkuni, nezinye iminyango yomlilo.

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.