Iminyango ye-fire shutter ifakwe izinto zokuzwa intuthu kanye nezinzwa lokushisa, ezingabonakala futhi zibonwe ngesikhathi lapho kuvela umlilo, kuzokhishwa i-alamu, futhi kuzothathwa izinyathelo ezifanele zokuvimbela umlilo. Izinsiza ezingashi kanye nezicabha ezivala umlilo zihlinzekwa enxanxatheleni yezitolo ezinkulu nasezindaweni zokugcina izimpahla ezitolo ezinkulu ukuze zisetshenziswe.

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.