Graphite flakes
Graphite powder
Potash feldspar powder, feldspar powder
Graphite blocks
Quartz
Silica sand
Silica sand
Graphite powder
Processed bentonite
Blast furnace slag, granulated blast furnace slag
Natural silica sand, silica sand
Bentonite powder
Graphite powder
Quartz lumps, quartz
Natural gypsum
Mica
Calcined china clay, china clay
Quartz grits, quartz
Slag
Fly ash