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I-Graphite Petroleum Coke (GPC Coke)
I-Petroleum Coke ye-grafitized ingasetshenziswa njengowokuqala kwekhabhoni (reclarburizer) ukukhiqiza insimbi esezingeni eliphakeme, i-cast iron kanye ne-alloy. Ingasetshenziswa futhi ngeplastiki nerabha njengesengezo.
