FC 98%min,S 0.02%max, Ash 0 ... material: imported needle coke from Japan 1.FC 98%min2.S 0.02%max3.Ash 0.08%max4 ... content in steel-melting and Ductile iron foundryCharacteristic:high carbon, low sulfur, with stable effect for ... improving the carbon content, high absorptive of carbonGrain size:normal size:0.3-3mm ... per as customer’s special requirement. High-purity Graphite Powder