... Cr2O3, MgO-ZrO2, Alumina-Silica, Mullite bricks for kinds of steel/iron/aluminium making furnaces lining We are producer and supplier for ... kinds of insulation bricks including Fireclay type, perlite type, mullite ... type, similiar-mullite type, kinds of MgO, MgO-C, MgO-Cr2O3, MgO-ZrO2 for EAF/LF ...