Processing of rubber; laminating; engraving; polishing of optical lenses; timber felling and processing; paper treating; fuel refining; water treatment and purification; saddlery working; generation of gas and electricity; processing of carbon fiber for custom manufacture of wind power equipment; processing of grain; processing of cereals; custom assembling of aircraft; custom manufacturing of aircraft; custom manufacturing of air pumps; coating and surface finishing of air pumps; surface coating and custom assembling of semiconductors; printing of advertising matter; dental scrap refining; custom tailoring or dressmaking; printing of photographic images from digital media; gas processing services; rental of air-cooled chillers; rental of air-conditioning apparatus; rental of cooling appliances and installations; providing information relating to the rental of air conditioning apparatus; rental of misting systems for outdoor cooling; rental of energy generating equipment; duplication of CD; framing of works of art; rental of 3D printers; rental of shoe making machines.