Igumbi lobushushu elithe rhoqo kunye negumbi lokufuma likwabizwa ngokuba ligumbi lobushushu eliphakamileyo neliphantsi kunye nokufuma, igumbi lobushushu elinomgangatho ophezulu neliphantsi, linokulinganisa ubushushu obuhlukeneyo kunye nokufuma okusingqongileyo, ikakhulu kumbane, umbane, izixhobo zendlu, iimoto kunye nezinye iinxalenye zemveliso kunye nemathiriyeli kwimeko emanzi kunye nobushushu obungaguqukiyo, ubushushu obuphezulu, ubushushu obuphantsi kunye nokutshintshana okumanzi kunye novavanyo lobushushu kunye novavanyo lokuziqhelanisa nemveliso. Isenokusetyenziswa kuzo zonke iintlobo zamalaphu kunye namalaphu ukulungisa ubushushu kunye nokufuma phambi kovavanyo.