The SPP series gas purging bricks are functional refractory components supplied by MRL for bottom gas injection in ladles during secondary steel refining. These bricks are designed to introduce argon or other inert gases into molten steel in a controlled and uniform manner. They are manufactured using high-purity alumina, premium magnesia, or spinel aggregates, combined with anti-corrosive additives and integrated purging pipes. Advanced forming and multi-stage sintering techniques ensure excellent gas permeability, thermal shock resistance, and slag corrosion resistance. SPP bricks are widely used in RH Degasser, Ladle Furnace, Vacuum Degassing, and VOD refining ladles to enable precise gas flow, improve steel cleanliness, and homogenize composition. They are critical components in the production of high-quality steel grades.