40 Treatment of metallic materials; forging of metal goods to the order and specification of others; forging of metals to the order and specification of others; services for the forging of metal to the order and specification of others; material treatment of materials, namely, blacksmithing, abrasion, magnetisation, plating, soldering, coppersmithing, chromium plating, metal casting, metal cutting, metal slitting, metal shaping, metal drawing, metal forming, welding, metal straightening, metal machining, metal pressing, aluminising, metal end forming, heat treating, pickling, powder and paint coating, enamelling, embossing, metal finishing, metal coating, metal coiling, metal trimming, metal swaging, metal chamfering, metal bending, metal manipulating, metal annealing, metal fabrication, brazing, metal profiling, metal stress relieving, gilding, tin-plating, stamping, mill working, pre-galvanisation and galvanisation, engraving, laminating, grinding, nickel plating, metal plating, metal burnishing, soldering, and metal tempering; metal machining being forging services and machining parts for others; die forging; precision die forging; forging of industrial parts; information and consultancy relating to the treatment of materials; generation of electricity; generation of power and of electricity; generating electricity, oil and gas; production of electrical power from renewable sources; production of electrical power from solar energy; chemical treatment of metallic building materials, non-metallic building materials, construction materials made of metal, construction materials being non-metallic, solar collectors, apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, photovoltaic apparatus and instruments, solar energy collectors, apparatus and instruments for lighting, heating, water supply and sanitation, and thermal storage apparatus and instruments; waste disposal, namely, waste incineration, waste treatment; generation of energy from renewable sources; energy production; production of energy by power plants; recycling of metals; desalination being water treatment services; cement grinding; detoxification treatment of hazardous metals, fuels, natural gas, hazardous gases, hazardous materials and substances, crude mineral oil, chemicals, and coal; Treatment of materials by vulcanization; sand blasting material treatment; treatment and processing of ores and ore concentrates, namely refining of metals; chemical treatment of exhaust gases from fossil fuel combustion; refining of metal, metal scraps and petroleum; refining of crude oil; refining of oil; metallurgical smelting; metal refining services, namely scrap refining; milling being millworking; mill working; flour milling; food milling