The UL steel fireproof door can be equipped with windows, louvers, ventilation louvers, etc. as required. UL steel fireproof door only needs to be pushed open by hand, and then it will be closed silently and automatically, without the sound of collision like the inner and outer doors, thus creating a quiet environment.

ZHTdoors yong’inga qarshi eshiklar, yong’in eshiklari va derazalarida 31 yillik ishlab chiqarish tajribasi. Asosiy UL yong’in eshiklari, EN yong’in eshiklari, BS EN yong’in eshiklari va boshqalar.