Iindaba zeNkampani
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IDIAMOND WABONA INKCAZELO YOBUGCISA
UHLOBO LWE-AGREGATE Zininzi iindidi ezahlukeneyo zamatye asetyenziswa njenge-aggregate, isikali se-Mohs sisetyenziswa rhoqo ukulinganisa ubulukhuni obungu-aggregate.Uninzi lwee-aggregates ziwela kuluhlu lwe-2 ukuya kwi-9 kwisikali se-Mohs....Funda ngokugqithisileyo
