Intambo ehlabayo ephindwe kabili yenziwe ngensimbi yensimbi enekhabhoni ephansi yekhwalithi ephezulu, intambo yensimbi engagqwali, intambo evalwe ngepulasitiki, iwire galvanized, njll. ngemva kokucubungula nokusonteka.
Inqubo yokuluka ucingo oluhlabayo olusonte kabili: olusontekile futhi olulukiwe.