Lead-zinc ore powder is an ore that contains lead (Pb) and zinc (Zn) as the main metal components, and usually also includes other associated metal elements. Lead-zinc ores are widely distributed globally, primarily existing in the form of sulfide minerals, such as galena (PbS) and sphalerite (ZnS). After mining and beneficiation, pure lead and pure zinc can be extracted.

Concentrated iron ore is a type of iron ore that has been processed and refined, with a high iron content. It mainly includes magnetite (Fe₃O₄) and hematite (Fe₂O₃), along with a small amount of other impurities. Concentrated iron ore is the primary raw material in the steel industry, which is reduced at high temperatures to produce pig iron or directly smelted into steel.

Steel wool, also known as metal fiber wool or metal grinding wool, is a fibrous material made from high-quality steel through special processes such as drawing, cutting, and rounding. Its main characteristics are high strength, good wear resistance, high-temperature resistance, excellent thermal conductivity, and good flexibility and compressibility.

Reduced iron powder is usually a gray or black powder made from iron oxides (such as Fe3O4 or Fe2O3) that are reduced at high temperatures using gases (such as hydrogen or carbon monoxide) or solid reducing agents (such as coke).

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