Fire doors are divided into normally closed fire doors and normally open fire doors according to the open state. Normally closed fire doors are usually in a closed state under the action of the door er. Therefore, when the fire can prevent the fire smoke; often open fire door usually in the action of the door closing state, when the fire, the automatic release switch, fire door closing in the action of the door and counter.

umnyango womlilo,ipuleti lokukhahlela umnyango elilinganiselwe umlilo,fire rated doors,internal fire doors,

umenzi wezicabha ezikwazi ukumelana nomlilo,fire doorb,isicabha sensimbi esiphindwe kabili esine-hardware, izithombe zeminyango yokhuni yokuphepha yamafulethi, iminyango yezokuphepha 820,iminyango elinganiselwe ngomlilo,isithombe somnyango wokuphepha, iminyango yezinyawo ezingu-9 ngaphakathi,internal fire doorsr,umnyango wephaneli obhalwe phansi,

Isicabha esingangenisi umlilo sokhuni,umnyango womlilo,ukusetshenziswa komnyango wokuphuma ezimeni eziphuthumayo, umnyango olinganiselwe umlilo, indawo yokuhlala elinganiselwe umlilo