Igitabo cyo kugura Ubushinwa Umupira: Nigute wahitamo neza umupira wubushinwa
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. Kugura kwaUbushinwa umupira wamaguru, ugomba kwitondera ibintu bikurikira kugirango uhitemo neza umupira wubushinwa.