UL wood fire door has paint door and paint free door, and the fire resistance limit is 20 to 180 minutes. In addition, the hardware fittings of UL fireproof door shall generally bear the UL label.

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.