According to the fire door specification, each fire door has its own identity tag, which is the electronic ID card of the fire door. The fire door label is generally pasted on the upper right corner of the door leaf. The label can know the manufacturer information, product production date, specification grade, number and other information.

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.