以锆英石精矿经加工的氧化锆、铝尖晶石、方镁石为主晶相的耐火制品。产品具有熔点高、热导率 低、高温情况下化学稳定性好等特点，对熔融玻璃和液态金属具有良好的耐侵蚀性，产品广泛应用于建 材工业、冶金工业用热工设备等专业领域。 　　It`s made from ZrO2,aluminium spinel,pericl-asite as raw material,It has high melting point,low thermal conductivity,good chemical stability under high temperature,good corros ion resistance,ma-inly used in bulidings and materials , metallurgy etc.