Sintered magnesia is made of super-grade and first-grade magnesite, which is sintered into magnesia-carbon bricks after light firing, fine grinding, ball pressing and high-temperature shaft kiln sintering. Magnesia has low impurity content, high bulk density and good slag resistance. It is used to manufacture mid-range magnesia bricks or magnesia unshaped refractories.

Fused magnesite: It is made by fusing selected special A-grade natural magnesite or high-purity light-burned magnesia particles in an electric arc furnace. The product has high purity, large crystal grains, compact structure, strong slag resistance, and good thermal shock stability. Therefore, it is used as an excellent high-temperature electrical insulation material, and it is also used to make high-grade magnesia bricks and magnesia carbon. An important raw material for bricks and unshaped refractories.

High-purity magnesia: It is made by flotation and purification of natural super-grade magnesite ore after light sintering, fine grinding, ball pressing, and ultra-high temperature oil shaft kiln calcination. The purpose of high-purity magnesia is: it is a high-quality raw material for making bricks and indeterminate refractory materials.

The burnt magnesia is made from natural magnesite ore and calcined in a high-temperature shaft kiln. The purpose of burnt magnesia: raw materials for making bricks and producing unshaped refractory materials, and the finished products are used for steelmaking, electric furnace bottom and ramming furnace lining.

The mid-grade magnesia is produced from light-burned magnesia with 97% MgO content as raw material, and is produced by processes such as ball pressing and high temperature shaft kiln calcination. The product has good sintering degree and dense crystals.