Casting machines; Pile-extractors; Vibratory grinding machines; Power tools, namely, hammer drills; Laser welding machines; Polishing machines for use in grinding and polishing metal, wood, ceramics and plastics; Electric hand-held drills; Grinding machines for the treatment of ceramics and metal; Grinding and polishing machines; Laser engraving machines; Electric welding machines for metalworking; Grinders being power tools; Computerized engraving machines; Power driven polishers; Electro-ch...