Rudzi urwu rwetambo runowanzo kuverengerwa copper conders, magnesium oxide insoluulating zvinhu, masheya emhangura uye zvimwe zvinhu zvechisimba. Vanowanzoiswa munzvimbo dzine mwero zvakakwirira zvekuchengetedza moto, senge nzvimbo dzine njodzi dzenhandare dzenhandare, zvidyarwa zvemafuta, zvakakwirira
Nzvimbo.
Mabote emaminerari anouya mumhando dzakasiyana siyana, uye mhando dzakasiyana dzakakodzera nzvimbo dzakasiyana uye zvinodiwa. Marudzi akajairika emaminerari emoto {} anodzivirira tambo zvinosanganisira:
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