... 3%max Size:0-5mm,1-8mm For iron and steel plant, foundry Iron powder scrapSell Natural Graphite GrainsCarbon content: 60%, ... can be widely applied to steel and iron, refractory material, electrode paste and other products. Sell Natural Graphite PowderFixed ... applied to battery carbon rod, steel and iron, casting material, refractory material, fuel, paint, electrode paste and pencil, battery, graphite ...