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self closing fire door,automatic fire truck door,self fire door

Fire doors can be divided into steel quality fire doors, wooden fire doors, glass fire doors, steel and wood fire doors, etc. Fire doors can meet fire stability, integrity and thermal insulation for a certain period of time. It is a fire partition with certain fire resistance, such as fire compartments, evacuation stairwells, vertical shafts, etc.

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self closing fire door,automatic fire truck door,self fire door-ZTFIRE Door- မီးသတ်တံခါး၊ Fireproof Door၊ Fire rated Door၊ Fire Resistant Door၊ Steel Door၊ Metal Door၊ Exit Door