The exterior surface of steel fireproof door is treated by electrostatic spraying, and windows, louvers, ventilation louvers, etc. can be set as required. The thickness of steel fire door leaf is divided into three specifications, namely, A, B and C, with outstanding sound insulation and heat insulation performance.

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.