Special materials commonly used are AZS bricks, corundum bricks, and direct combination of magnesium and chromium.
Non-oxide refractory materials such as brick, silicon carbide brick, silicon nitride bonded silicon carbide brick, nitride, silicide, sulfide, boride, carbide, etc.; calcium oxide, chromium oxide, aluminum oxide, magnesium oxide, antimony oxide, etc. Refractory material. Frequently used insulating refractories are diatomite products, asbestos products, insulation panels, and the like. Commonly used amorphous refractories are replenishing materials, ramming materials, castables, plastics, refractory clay, spray materials, projection materials, paints, lightweight refractory castables, and mortar.