... refractory material, electrode paste and other products.Sell Natural Graphite BriquetteCarbon content: 60%,70%,75%,78%,80 ... additives in iron and steel field, casting etc.Sell Natural Graphite PowderFixed carbon content: 60%, 65%, 70%, ... electrode paste and pencil, battery, graphite emulsion, preservative, graphite lubricant, smelting carburant, graphite bearing and other products. Natural Amorphous ...