Fire door is made of fire retardant door with insulating refractory stability, integrity, and stays, it is mainly used for building fire partition firewall openings, stair between inward and outward, evacuation passages, the place such as pipe mouth of the well, normally used for personnel, can rise to stop when a fire flame spread and smoke to prevent the combustion air flow...
Fire door is made of fire retardant door with insulating refractory stability, integrity, and stays, it is mainly used for building fire partition firewall openings, stair between inward and outward, evacuation passages, the place such as pipe mouth of the well, normally used for personnel, can rise to stop when a fire flame spread and prevent the combustion flue gas flow, and when is air supply system work on the role of sealing. In today's increasingly mature fire technology, there are fire doors of the building fire requirements, the vast majority of the current domestic fire design specifications are clearly required to use fire doors.Fire door is made of fire retardant door with insulating refractory stability, integrity, and stays, it is mainly used for building fire partition firewall openings, stair between inward and outward, evacuation passages, the place such as pipe mouth of the well, normally used for personnel, can rise to stop when a fire flame spread and prevent the combustion flue gas flow, and when is air supply system work on the role of sealing. In today's increasingly mature fire technology, there are fire doors of the building fire requirements, the vast majority of the current domestic fire design specifications are clearly required to use fire doors.