The fire doors we usually refer to are thermal insulation fire doors (ie Class A fire doors), which can meet the requirements of fire integrity and thermal insulation at the same time within the specified time. A fire door with a fire resistance rating of not less than 1.5h.

https://ztfiredoor.com/23859.html

fire rated access panel doors,exterior fireproof door,20 minute fire rated exterior door,fire rated double egress doors,commercial fire rated double doors,fire rated access panel doors,60 minute door,fire door with viewing panel,fire rated double egress doors,automatic sliding fire doors,exterior fireproof door,double sliding fire doors,fire rated frp doors,fire rated double egress doors,fire rated residential garage doors,fire rated access panel doors,lowes 20 minute fire rated door,exterior fireproof door,outside fire doors