Treatment of material, namely, inorganic substances, by means of chemical processing or chemical production in the form of the addition of metal oxides to organic and aqueous solvents to manufacture polishing preparations; abrasive blasting services; ceramic processing for technical ceramic works; burnishing by abrasion; optical glass grinding; abrasive polishing services, namely, polishing of glass, sapphires, ceramics, silicon carbide, metals; glass polishing; treatment of glass to alter it...