- 27
- Feb
fire rated hotel room entry doors with frame,size 9×21 or 10×21 fire rated steel doors,panic exit device for fire door hyland oem 310
Steel fire doors and door frames shall be filled with non-combustible materials, and the melting temperature of hardware accessories such as door locks, hinge and pin shall not be lower than 950℃. At present, there is no size of fire doors, but the fire resistance limit of fire doors.
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