the nonmetallic product, consisting essentially of silicates and alumino-silicates of calcium and other bases, that is developed simultaneously with iron in a blast furnace (see: blast furnace, blast-furnace smelting), mittemetalne produkt, mis koosneb peamiselt kaltsiumi silikaatidest ja alumosilikaatidest ja mis moodustub malmisulatusel kõrgahjus (vt kõrgahi, kõrgahisulatus)