Ipuleti letshe le-quartz liyinhlanganisela eqinile futhi enobungani kwemvelo ekhiqizwa ubuchwepheshe obusezingeni eliphezulu kakhulu emhlabeni.Ukusebenza okuhle kakhulu kwesisekelo, uma kuqhathaniswa netshe elijwayelekile lokwenziwa, kunezinzuzo eziningi: ukumelana nokushisa okuphezulu, i-asidi kanye ne-al...
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