... Size:0-5mm,1-8mm For iron and steel plant, foundry Iron powder scrapSell Natural Graphite GrainsCarbon content: 60%,65 ... applied to steel and iron, refractory material, electrode paste and other products. Sell Natural Graphite PowderFixed carbon content: 60%, 65 ... applied to battery carbon rod, steel and iron, casting material, refractory material, fuel, paint, electrode paste and pencil, battery, ...