Ceramic foundry sand is made from high-quality calcined bauxite, processed through electric fusion, granulation, and screening processes to produce spherical refractory particles.
Green silicon carbide is made from petroleum coke and high-quality silica, with salt added as an additive, and refined in a high-temperature resistance furnace.
Tabular alumina is a pure sintered alumina, thoroughly calcined without the addition of any additives such as MgO or B2O3. It boasts a coarse, well-developed α-Al2O3 crystal structure, with an Al2O3 content exceeding 99%.
Glass beads, produced from crushed glass and flat glass materials, are processed into spherical shapes through high-temperature melting.
Bubble alumina is a new type of high-temperature insulation material, consisting of a-Al2O3 microcrystals.