... powder Spec: FC:98%--99.5%min,S:0.05%max ,moisture:0.5%max artificial graphite powderSpec1) FC: 98%min,S:0.05 ... %max ,moisture:0.5%max,2) FC: 98.5% ,S:0 ... .05%max,moisture:0.5%max3) FC: 99% ,S:0 ... .05%max, moisture:0.5%max4) FC: 99.5%min ...