UL fire door refers to the American standard fire door, which is used in North America and other countries and regions that recognize UL standards. Different from other fire doors, the obvious feature of American Standard fire doors is that American Standard fire doors need to be tested by fire water hammer. Welcome to consult us.

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.