... and high-quality chrome ore as raw materials,2. Sinter by high-pressure, high temperature until melting, Product features: 1. ... porosity, low heat conductivity; 3. Resist the spalling and erosion. Product application:1. Used for the roof to all kinds of steelmaking ... . RH, VOD, AOD, and other refining installations; 3. Building industry, glass furnace, cement rotary kiln etc. Magnesia chrome brick for ...