When the steel fire door is opened, it only needs 1KG force, the opening pulling force is less than 50N, and the door handle is set at a height of 700-1100mm, which can be easily pushed and pulled by both adults and children.

https://ztfiredoor.com/25574.html

fire door louver,fire door magnetic holder,fire proof security door,fire door 40 inch x 80 inch,fire insulated doors and windows,fire door louver,fire rated single leaf door,fire door magnetic holder,fire rated door mortise lock,fire door 40 inch x 80 inch,fire rated exit doors,fire door louver,fire resistant door handles and locks,fire door magnetic holder,aluminium plating fire door,fire door 40 inch x 80 inch