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Isatshalaliswa kuphi i-flake graphite yemvelo?
Ngokombiko we-United States Geological Survey (2014), izinqolobane ezifakazelwe zemvelo ze-flake graphite emhlabeni zingamathani ayizigidi eziyi-130, phakathi kwazo, izinqolobane zaseBrazil zingamathani ayizigidi ezingama-58, kanti iChina ingamathani ayizigidi ezingama-55, ukubeka phezulu emhlabeni. Namuhla sizokutshela ...Funda kabanzi
