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Kuyinqubo yokuhlanganisa intambo egobile kanye nentambo eqondile.Iqoqo elifanayo lentambo eqondile negobile linemibala emine, umbala wotshani bokwenziwa ungokwemvelo, ukubukeka kungokoqobo futhi kuhle.Ukulingiswa kotshani kuphakeme futhi kuyaqhathaniswa ngotshani bemvelo.