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lead lined fire door,24×24 fire rated access door,internal sliding fire doors

Fire hazard is what everyone must guard against in our daily life, and fire doors have also become the choice of many people. The biggest difference between wooden fire doors and steel fire doors is that they use different materials, and they use different flame retardant treatment methods for fire protection. Welcome to consult us.

https://ztfiredoor.com/21863.html

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