Polishing machines for use in grinding and polishing metal, wood, ceramics and plastics; Power-operated polishers

3D printers; Gasifiers; Sawmills; Computerized engraving machines; Electronic feeders for animals; Extensions for power tools; Laser engraving machines for woodworking; Lawn and garden tilling machines; Machine tool holders; Mechanical mixing machines; Molding and die-casting tools, namely, steel pins and molding presses being machine parts for dies and molds; Polishing machines for use in grinding and polishing metal, wood, ceramics and plastics; Power-operated polishers; Sand-blasting appar...