304 waxay dabooshaa heerka qalabaynta tuubooyinka birta austenitic ee la sameeyay ee codsiyada tuubooyinka cadaadiska. Alaabta ku xidhmidda tuubooyinka waa in ay ku jiraan been-abuurka, baararka, taarikada ama tuubooyinka aan xidhnayn ama alxanka leh. Hawlgallada been abuurka ama samaynta waa in lagu fuliyaa dubbe, riixid, daloolid, kaxaynta, xanaaqa, duubista, foorarsiga, alxanka fiyuuska, makiinada, ama isku darka laba ama ka badan oo hawlgaladan ah. Dhammaan qalabyada waa in lagu daaweeyaa kulayl.