Uboya be-Slag yi-cotton-efana ne-inorganic fiber eyenziwe kwi-slag ye-industrial waste (i-blast furnace slag), i-basalt, i-diabase, i-dolomite, njl., enyibilikiswa kwiqondo lokushisa eliphezulu le-1450 ° C kwaye ijikelezwe yi-speed centrifugal spinning. Yenziwe ngobude obusisigxina, ukususwa kwe-slag, unyango olungaphezulu kunye nezinye iinkqubo