Izitshalo eziningi zezitshalo zingasetshenziswa emkhakheni wezinto ezihlangene, njenge-limestone, basalt, granite, andesite kanye ne-riverstone nokunye. Nakuba izitshalo ezahlukene emazweni ahlukene zingasehlukahlukene.
Ukucwangcisa kwezimpahla zezihlahla kuyinto ebalulekile kakhulu emisebenzini ye-SBM, okuhlanganisa ukucwangcisa kwezimpahla zezihlahla, ukugaya kwezimpahla zezihlahla, nokuthuthukisa kwezimpahla zezihlahla. Siyaziqeqeshisa ekuhlinzekeni izixazululo ezibanzi, ezimele, zidingo zokuthengwa kwabantu bezokuhweba kule ndawo.
Ukucwangcisa kwezimpahla zezihlahla kuyinto ebalulekile kakhulu emisebenzini ye-SBM, okuhlanganisa ukucwangcisa kwezimpahla zezihlahla, ukugaya kwezimpahla zezihlahla, nokuthuthukisa kwezimpahla zezihlahla. Siyaziqeqeshisa ekuhlinzekeni izixazululo ezibanzi, ezimele, zidingo zokuthengwa kwabantu bezokuhweba kule ndawo.
Gcwalisa ifomu elingezansi, futhi singakwanelisa noma yikuphi ukudinga kwakho okuhlanganisa ukukhethwa kwezinto, ukwakhiwa kwesigaba, usizo lobuchwepheshe, kanye nenkonzo emva kokuthengisa. Sizokuxhumana nawe ngokushesha ngangokunokwenzeka.