Isesengura ry'umupira w'amaguru mu Bushinwa: kubungabunga biraruhije
Umuyoboro wa Ball ni ibikoresho bisanzwe bigenzura amazi, imiterere yoroheje, gufunga neza nibindi byiza bituma ikoreshwa cyane muri peteroli, imiti, metallurgie, amashanyarazi nizindi nganda mubijyanye no kugenzura amazi. Ariko, ugereranije nibyiza,Ubushinwa umupira wamaguru ifite kandi ibibi bimwe, kimwe muricyo kigoye kubungabunga. Iyi ngingo izava mubitekerezo byumwuga, kugirango ubashe gusesengura ibitagenda neza mubushinwa umupira wamaguru.