3D printers; 3D printing pens; Abrasive blast cleaning machines; AC generators; Agitators for chemical processing; Agitators for circulating liquid media; Bottle washing machines; Brakes for machines; Centrifuges; Coating machines and lines for web products, parts for the aforementioned machines, particularly doctors, nozzles, application units; Commercial and industrial vacuum cleaners; Compressor cleaning machines; Electric arc welding apparatus; Elevating work platforms; Gravure cylinder prepress system, consisting of a coater device for coating gravure cylinders with thermal resist material, computerized imager device with a laser imaging head for imprinting on coated gravure cylinders; Laser engraving machines for woodworking; Laser welding machines; Mobile fluid cleaning machinery; Three dimensional (3D) printers