There are many specifications of fire doors, which can be made with windows or customized according to user requirements. The glass on the fire door must be fire proof glass, which is fired in a high temperature flame of more than 1000 degrees. After testing, it can be kept for 90 minutes or even longer, without melting or explosion.

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.