... Lutang Chenzhou, where there is the biggest deposit of amorphous graphite. graphite powder:fixed carbon (FC): 55%,60%,65%,70%,75%,78 ... -2 WT78-3W70-2 W70-3 W75-2 W75-3 graphite ball: fixed carbon(FC):70%, 75%, 78%, 80%, 83%,85 ... *40mm*26mmtype:WT80-Q WT78-Q WT75-Q WT70-Q graphite grain:fixed carbon(FC):70%,75%,78%, 80%,83%,85 ...