T-Ubwoko bwa Fin Tube
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T-Ubwoko Bwiza Bwinshi bwo Guhana Ubushyuhe Byarangiye Tube
T fin tube ni ubwoko bwimikorere ihanitse yubushyuhe ikorwa mugutunganya no kubumba umuyoboro woroheje.Imiterere yacyo iranga urukurikirane rw'impeta izenguruka T tunel hanze yumuyoboro.
