该制品采用低钙钠，高纯度电熔氧化镁材料，用1500吨伺服数控液压机成型，体积密度高，经高温烧结，耐压强度大，抗碱性气体侵蚀好。用于钒氮合金，磁性材料氮气窑炉预热，挥发区内衬使用效果良好。

The product is made of low calcium, high purity magnesium oxide materials, with 1500 tons of servo hydraulic press molding, bulk density, high temperature sintering, high pressure strength, corrosion resistance. For vanadium nitrogen alloy, magnetic material nitrogen furnace preheating, volatile area lined with good results.