Uyini ngempela umkhiqizi wokugxiviza? Ithiyori yokusebenza: Empeleni, umkhiqizi wokugxiviza uyisikhungo esikhethekile lapho kukhiqizwa izingxenye ezahlukahlukene kusetshenziswa indlela yokugxiviza. Iningi lezinsimbi, okuhlanganisa insimbi, i-aluminium, igolide, nama-alloys ayinkimbinkimbi, angasetshenziselwa ukugxiviza. Yini mina...
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