- 22
- Feb
fire rate door dolte,lever lock fire door,stainless steel doors fire rating
Fire door refers to the door that can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. In addition to the function of ordinary door, but also has the role of preventing the spread of fire and smoke diffusion, can prevent the spread of the fire in a certain period of time, to ensure the evacuation of personnel.
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