Isitishi esizinzisiweyo

Iitshaneli ze-U/C ezishushu eziqengqelekayo zizitsha zentsimbi ezimile njengonobumba "U" okanye "C" ezenziwe ngenkqubo yokuqengqeleka eshushu. Oku kubandakanya ukufudumeza iibhilithi zentsimbi ukuya kumaqondo obushushu aphezulu kwaye emva koko ziqengqeleke kwimilo efunekayo. Ezi tshaneli ziqhele ukusetyenziswa kulwakhiwo kunye nolwakhiwo lwezicelo ngenxa yamandla abo kunye nokuguquguquka.