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commercial double metal doors,commercial metal doors and frames,commercial hollow metal

Fireproof sealing strips are mainly used between the door leaf and door frame of steel doors and wooden doors, and between the door leaf and the door leaf. It has a very obvious effect on us when we encounter a fire, and can effectively help us prevent the harm of toxic gases to the human body and the spread of smoke. We can also call it a flexible fireproof expansion seal.

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