以方镁石、铬矿和少量硅酸盐为主晶相的碱性耐火制品。产品具有耐高温，抗侵蚀， 抗热震，高温下体积稳定等特点 。产品广泛应用于 冶金 （平炉、电炉） 、有色（冶 金炉）、建材（水泥回转窑、玻璃熔窑蓄热室）等。 　　It`s made from periclasite,chrome and silicate withalkalinerefracto ry　products as raw material.It has goodhigh temperature,corrosion resi stance,thermal shock,bulk stability under high temperature etc . Mainly used in metallurgy(open hearth,EAF), non-ferrous (metall-urgyfurnace ) , buildings and materials (cement rotary kiln,glass kiln) etc.