The fire door closer can ensure that the door is closed to the initial position accurately and timely after being opened. The main purpose of the fire door closer is to make the door close automatically to limit the spread of fire and ventilation in the building.

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.