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A ina aka rarraba graphite na halitta na halitta?
Dangane da rahoton US Geological Survey (2014), tabbataccen tanadin girasar flake na halitta a duniya shine tan miliyan 130, daga cikinsu, ajiyar Brazil tan miliyan 58, na China kuma tan miliyan 55, matsayi mafi girma a duniya. A yau za mu gaya muku ...Kara karantawa
