After the fire rated glass doors are exposed to high temperatures, the transparent jelly-like fireproof glue layer in the middle of the glass will harden rapidly, forming an opaque fireproof insulation board. Fireproof glass door is a relatively safe glass door. The hardness of fireproof glass is 6-12 times that of float glass; it is 2-3 times that of tempered glass.

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.