Butt - Litopo tse otlolohileng tsa pompo e otlolohileng

Sehlahisoa sena se sebelisoa peteroleum, lik'hemik'hale, metaldigical, meriana - Aross, ea u apesitsoeng - Lihlekehleke tsa Liphara Acid le Alkali - anyehang, a tšoarella. Bokamo bo tšoaetsoa ka nepo, bo boreleli le bo burr - mahala, ntle le ho hlahlojoa, ho bonolo ho kenya le ho sebetsa ebile ha ho bonolo.