以方镁石和镁铬尖晶石为主晶相直接结合（固相结合）的耐火制品。产品具有高温机械强度高， 抗渣性好、抗氧化铁渗透力强、高温下体积稳定等特点。产品广泛应用于冶金 （平炉 、电炉 、转 炉）、有色 （转炉、闪速炉、RH、DH）、建材（水泥回转窑、玻璃熔窑蓄热室）等。 　　It`s made from combined periclasite and magn-esite chrome spinel directly , it has high temperature machinery and high strength , good slag resistance ,strength iron oxi de resistance , bulk stability under high temperature,it can be applied metallurgy(ope n hearth,EAF,converter),non-ferrous(converter,flash furnace , RH , DH), buildings and materials(cement rotary kiln,glass kiln) etc.