Fire doors are generally located in closed evacuation stairs, elevators, pipeline wells, etc.

https://ztfiredoor.com/25551.html

garage fire door,swing type double leaf fire room door,finished fire doors,90 minutes fire rated exterior door,garage fire door,8′ fire rated door,door closer fire rated,90 minutes fire rated door,finished fire doors,louver fire rated steel door,door closer fire rated,90mins fire door,garage fire door,6 panels stainless steel fire rated sliding doors,finished fire doors,door closer fire rated