以合成方镁石（尖晶石）为主晶相的碱性耐火制品 ，产品具有较高的抗热震稳定性能及较强的抗剥落易 挂窑皮等特点。产品主要应用于大型水泥回转窑烧成带。 　　It`s made from synthesize periclasite(spinel) with alkaline refractory products as raw mate rial,it has g-ood thermal shock resistance,spalling resistance etc.It`s mainly used in large-ty pe cement rotary kiln.