The fire door only needs to be opened gently, and then it will be closed silently and automatically. It is not easy to have the sound of impact, and then build a peaceful natural environment; When the fire door is opened, only 1KG force is needed, and the opening tension is less than 50N. Even people sitting in wheelchairs can open it easily.

ZHTdoors fire doors, 31 years of production experience in fire doors and Windows. The main UL fire doors, EN fire doors,  BS EN fire doors, etc.,.We have certification.ZHTdoors support OEM and free design.Our advantages:good quality, factory price, good service.Welcome to consult us.