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Isicelo semikhiqizo ye-JCDRILL
IZIKWELI NEZIMINI Ukufakwa okwengeziwe kwezimayini: 1. Ukumba izimayini ezingaphezulu 2. Ukumba amatshe athambile ngaphansi komhlaba 3. Ukumba amatshe aqinile ngaphansi komhlaba 4. Ukumbiwa kokukhiqiza ama-blasthole ezinkwalini nasezimayini.Kunezinhlobo ezine eziyinhloko zokuqhuma...Funda kabanzi