I-high-strength enamathelayo ekhethekile iwukuqina okuphezulu, ukuqina okuphezulu, izingxenye ezimbili, izinga lokushisa lekamelo eliphulukisa ngokushesha ukunamathela okukhethekile, okusetshenziselwa ngokukhethekile ukuhlanganisa izingxenye zemishini ze-granite ngokunemba ngokufaka.