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Ka tohatohahia te kauwhata tawerewere ki hea?
E ai ki te purongo a TE United States Geological Survey (2014), ko nga rahui kua whakamatauhia mo te graphite tawerewere o te ao he 130 miriona taranata, i roto i enei, ko nga rahui o Brazil he 58 miriona taranata, a ko Haina he 55 miriona taranata, ko te tihi o te ao. I tenei ra ka korero matou ki a koe ...Pānuitia atu