The difference between the fire resistance limit of the fire door: the fire door is divided into A, B, C, which is the fire resistance integrity of the fire door, that is, the fire resistance time, the current standard is the fire prevention time is not less than 1.5 hours, class B is not less than 1.0 hours, class C is not less than 0.6 hours.

what is a type a door,umnyango womlilo vs umnyango oqhelekileyo, ipleyiti yokukhaba yocango,b label door fire rating,c label fire door,

umenzi wocango okwaziyo ukumelana nomlilo,what is a type a door,ucango oluphambili olungatshiyo, izixhobo ezingqina umlilo,b label door fire rating,Ubukhulu bocango olulinganiswe nomlilo, umnyango wentsimbi x, ukusetyenziswa kocango olungxamisekileyo, ucango olulinganiswe ngumlilo ngemizuzu engama-90,c label fire door,

iingcango zamaplanga ezingatshiyo,c label fire door,Ukusetyenziswa kocango lokuphuma ngexesha likaxakeka, ucango olulinganiswe ngumlilo ul, indawo yokuhlala enocango lomlilo