Natural Amorphous Graphite Grain Carburant FC: 70-85% grain size:0-30mm volatile matter <3% moisture <2% large quantity Natural ... ): 70%,75%,78%, 80%,83%, 85%grain size: 1-3mm,1-5mm,1-6mm,1-8mm,1-10mm,1-30mm,0.3-1mmmoisture: less than 2%, less ... than 3%.typeW78-1-8 W80-0-30 W70-1-3 W75-1-3 W70-1-5 W75-1-5W70-0.3-1 W75-0.3 ... -1 and we can produce ...