Coating of metal objects with wear-resistant layers, other than varnishing; Wear-resistant coating of metal objects all in the nature of applying decorative and protective coatings to metal objects by means of galvanization; Treatment of materials, namely, heat treatment of metal; coating of metal all in the nature of applying decorative and protective coatings to metal objects by means of galvanization; polishing of surfaces of metal all in the nature of metal finishing services for others; ...