Iisilinda zeButane ziza nemingcipheko yendalo, ukunyanzelisa ukusetyenziswa kwabo kude kuyo nayiphi na imithombo yobushushu kunye nokuthobela ngokungqongqo izikhokelo zokuphatha ezifanelekileyo.
Iisilinda zebutane eziphathwayo zinokutsha ngokugqithisileyo. Imilinganiselo engqongqo ilawula ukusetyenziswa kwazo, kubandakanywa ukutshekishwa kokuvuza kwangaphambili kujongano kunye nothintelo oluqinileyo ngokuchasene nakuphi na ukuthambeka okanye ukuguqulwa..