The naterial of electro-fused magnesia sinter is selected fromsoec-ial grade A natural magnesite or high-purity caustic calcinedmagnesite, which is fused in arc furnace to finish the products.Theproducts poss-ess high purity, bigh crxstalline grain and compacttexture, have high heat-vobration steady and cinder corrosionresistant. It is used for ma-king high quality magnesite bricks,magnesia-carbon bricks and unshaped refractory materials.Ourfactory the electro-fused magnesia the specification isMgO  96%-97%SIO2 1.8%-1.3% AL2O3 0.5%-0.4% CAO 1% FE2O30.5% -0.6% B.D. 3.35%-3.45%G/CM3