9718CXii is a premium grade resin bonded high purity fused Magnesite (MgO > 97%), EAF brick with natural flake graphite (C > 97%) and , metallic anti-oxidants to display the high resistance properties against oxidations and slag erosions for extended heat life applications. AMC-70AS is a resin bonded high purity fused Alumina (AL203 > 95%), Magnesite (MgO > 97%) brick with natural flake graphite (C > 96%) and metallic anti-oxidants for use in the barrel and sidewalls.