Magnesia-aluminum spinel has the characteristics of high volume density, good appearance color, good thermal shock stability and strong corrosion resistance. Magnesia aluminum spinel is widely used in the top of electric steel furnace, the production of high-performance castables, cement rotary kiln and glass industrial kiln, sliding water and ladle lining bricks.

Mullite white color, very low carbon residue, low porosity, low impurity content, high bending strength, high softening temperature under load, high hardness, low creep at high temperature, needle crystal development is good, mullite with its excellent thermal shock resistance and wear resistance, is widely used in glass kiln lining brick, mullite brick, large smelting blast furnace hot blast furnace brick, blast furnace low creep sillimanite brick. Mullite is the raw material of high-grade refractory in ceramic kiln, saggar, shed, petrochemical and other industries.