Composition of fire door
2020-01-08
The fire door is generally located in the following parts. (1) Close the evacuation staircase to the walkway; Enclose the elevator hall, the door leading to the front room and the front room leading to the walkway. (2) Inspection doors of vertical pipe shafts such as cable shafts, pipe shafts, smoke exhaust ducts, garbage ducts, etc. (3) Divide the fire compartment and control the fire wall and the door on the fire partition in the building area of the compartment. When building
Learn more+
