3D printers; Cutting machines; Electric soldering apparatus; Electrical and electronic apparatus and equipment all for use in generating energy obtained from alternative energy sources; Engraving machines; Filters and purifiers for machines, namely, filters and purifiers for removing contaminants from gases used in the semiconductor industry; Hot melt glue guns; Knives, electric; Laser engraving machines; Milling cutters for milling machines; Polishing machines for use in grinding and polishi...