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Magnetite (Fe3O4 chemical formula) is contained in the composition of coal ash and our company is a loya byproduct production. Magnetite has a wealth of this form of production capacity at the expense of the spherical surface, their quality as superkontsentrata iron ore is high. Our company is studying the demand for the supply of magnetite spherical particles with an average size of about 150 microns. Detailed pictures and informatioa on request.