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fire rated steel doors,24 x 80 steel door,fire rated exit door

Steel fire doors are impact resistant, with structural strength that can withstand long-term collisions without reducing fire protection, and can withstand the impact of fire hydrants. The thermal deformation rate of steel fire doors is low, and the bending curvature of the deformation after heating is low.

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fire rated steel doors,24 x 80 steel door,fire rated exit door-ZTFIRE Door- မီးသတ်တံခါး၊ Fireproof Door၊ Fire rated Door၊ Fire Resistant Door၊ Steel Door၊ Metal Door၊ Exit Door