Fire Door Fire Time

The fire protection time of the fire door is mainly determined by the fire board. In this regard, the performance of the fire board used in the class A fire door is generally better than that of the class B fire door, so the overall performance is stronger than that of the class B fire door. In addition, Class A fire doors are especially suitable for those occasions that require fine grinding before electroplating, excellent vibration, mirror polishing of hand tools, mirror polishing of electric heating pipes, etc., such as vibration of various furniture hardware accessories, cutting and polishing of hand tools, daily use Surface vibration of products, self-painted accessories, etc.

Another point worth paying attention to is that the material with door frame function in the Class A fire door, because the specifications of the door frame can be flexibly customized according to the needs of customers, and it is more convenient, labor-saving and time-saving to design the size of the door opening.