Processing of steel; rolling of steel; heat treating of steel; cutting of steel; shearing of steel; cutting of steel sheets; processing of light metals; metal stamping; heat treating of metals; heat treatment of metals; cutting of metals; milling of metal; metallurgical smelting; metal fabrication and finishing services; metal treating; surface treatment or processing for metals; electro and metal coating, metal treating and casting, hardening of metal and metal products; hardening of metals; machining of metals; metal tempering; metal plating; processing of metal parts; metal plastic processing; metallizing; shaping of metal components; surface finishing of metal articles; metal casting; metal mold casting; abrasive polishing of metal surfaces; heat treatment of metal surfaces; treatment and coating of metal surfaces; treatment of aluminum; blacksmithing.