The steel fire door frame should be filled with non-combustible materials, and the melting temperature of hardware accessories such as door locks, hinges, and latches should not be lower than 950 °C.

https://ztfiredoor.com/25597.html

fire rated pocket sliding doors,varavarana metaly tsy misy afo,28 inch varavarana misy afo,varavarana indostrialy nomena ny afo,fireproof interior doors,fire rated pocket sliding doors,fire resistant door to garage,fireproof door price,varavarana indostrialy nomena ny afo,32 varavarana naoty afo,varavarana metaly tsy misy afo,custom fire rated doors,fire rated main door,varavarana indostrialy nomena ny afo,fire rated external doors,varavarana metaly tsy misy afo,self closing fire rated door,fire rated pocket sliding doors,prehung afo naoty varavarana anatiny