There are many types of raw materials for refractory bricks, and the composition is mainly divided into six categories: soil, stone, sand, mine, powder and others. One of the raw materials, soil: aluminum soil, kaolin, clay, diatomaceous earth. The second material, stone: fluorite, kyanite, andalusite, forsterite, vermiculite, mullite, pyrophyllite, chlorite, dolomite, sillimanite, magnesium aluminate spinel, silica . The third material, sand: pottery sand, zircon sand, quartz sand, magnesia. The fourth material, mine: chrome ore The fifth material, powder: metal aluminum powder, silicon micro powder, metal silicon powder. Refractory brick raw materials, other: asphalt, graphite, phenolic resin, perlite, floating beads, sialon, corundum, silicon sulphate, silicon carbide, water glass, silica sol, boron carbide, calcium aluminate cement, nitrided materials , shale ceramsite, alumina, aluminum sol, zirconia, etc. Absorbent Sticy Floor Gurad,Blue Plastic Floor Protector,Floor Protection Rug,Clear Floor Protector Suzhou Surface Protective New Material Technology Co.,Ltd , https://www.surfaceprotective.com