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Umuyoboro w'icyuma / Tube
Imiyoboro yicyuma nigituba cya silindrike gikozwe mubyuma bikoreshwa muburyo bwinshi mubikorwa no mubikorwa remezo.Nibicuruzwa byakoreshejwe cyane bikozwe ninganda zibyuma.Ikoreshwa ryambere ryumuyoboro ni mugutwara amazi cyangwa gaze munsi yubutaka - harimo peteroli, gaze, namazi.