... Content:99% High purity carbon. Good absorptivity . Low sulfur , low ash steelmaking carburant Steelmaking carburant F.C(Min) ... 5-1mm,1-5mm,5-10mm,10-20mm,ect.It is made from low sulfur and low nitrogen ... has characteristics of high fixed carbon content , low sulfur , low ash , low resistance etc . It can be used as ... quality steel , cast iron and alloy . Low sulfur low ash steelmaking carburant 1-5mm