When the steel fire door is opened, only 1KG force is needed, and the opening tension is less than 50N. Even people sitting in wheelchairs can open it easily.

https://ztfiredoor.com/25464.html

ophumayo ophuthumayo umnyango oshelelayo,iminyango yokuphunyuka komlilo yangaphandle,umnyango wokuphuma komlilo,fire exit double door,iminyango emibili yokuphuma ezimeni eziphuthumayo,fire exit double door,double door fire exit,iminyango yokuphunyuka komlilo yangaphandle,iminyango yokuphuma yezimo eziphuthumayo zezentengiso,fire exit double door,emergency exit doors for sale,fire exit double door,emergency exit fire doors,iminyango yokuphunyuka komlilo yangaphandle,iminyango yokuphuma komlilo wezohwebo,fire exit double door