Ngokwedatha yecustom, ukuthunyelwa ngaphandle kwe-electrode yegraphite eTshayina yayiziitoni ezingama-46,000 ngoJanuwari-Februwari ka-2020, ukonyuka konyaka-ngonyaka nge-9.79%, kwaye ixabiso lilonke lokuthumela ngaphandle laliyi-159,799,900 yeedola zaseMelika, ukuhla ngonyaka-ngonyaka kwe-181,480,500. Iidola zaseMelika.Ukusukela ngo-2019, ixabiso lilonke leegrari zase China...
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