Serivise ya gazi, ibicuruzwa byabigenewe muri Nzeri, nigikoresho cyingenzi cyubwenge gikoreshwa cyane mubice byinshi nkurugo, ubucuruzi ninganda. Iyi ngingo izasesengura ibisobanuro, imikorere yibanze, ingero zikoreshwa, ibyiza nibibazo bya gaz servi ...
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