- 24
- 11月
Steel Door Frame,Fire Resistant Doors For Flats,Fire Exit Door Dimension
The fire resistance time of Class B steel fire door shall not be less than 1.0 hour, and the hardware fittings used on the fire door must also be fire-resistant hardware fittings. Usually, the fire door of this grade is generally used for the entrance door of family decoration.
公寓防火门,钢门窗,钢推拉门,steel door frame,fire exit door dimension,我附近的防火金属门,
带百叶窗的防火门,steel door frame,出口门标志,出口门价格,公寓防火门,防火金属门框尺寸,fire exit door dimension,
金属前门,防火金属门框,公寓防火门,防火闭门器,fire exit door dimension,沃尔玛防火门,钢门框