Waa qasabad loo isticmaalo in lagu farsameeyo laguna rakibo dunta gudaha ee fiilooyinka la geliyo, oo sidoo kale loo yaqaano qasabadaha ST iyo taps-ka.Waxa loo kala qaybiyaa qasabadaha jeexdin toosan, qasabadaha jeexjeexyada jeexjeexa iyo qasabadaha extrusion iyadoo loo eegayo qaabka iyo habka loo sameeyo dunta.