Marka la eego hababka wax soo saarka, waxa kale oo loo qaybin karaa tuubooyinka birta welded ee gaadiidka dareeraha cadaadiska hooseeya, tuubooyinka birta welded, tuubooyinka birta ah ee wareegsan, iwm. Tuubooyinka alxanka leh waxaa loo isticmaali karaa dhuumaha biyaha, dhuumaha gaasta...
Sii akhri