7 Grinding machines; grinding tools as parts of machines; sharpening machines; grinding wheel as parts of machines; cutting-off wheel as parts of machines; diamond-pointed metal-cutting tools; electric machines and apparatus for polishing; blade sharpening machines; cutting machines; truing and dressing machines for grinding wheel; diamond wheels for grinding machines; metalworking machines and parts and accessories thereof; construction machines and parts and accessories thereof; semiconductor manufacturing machines and parts and accessories thereof; stone working machines and parts and accessories thereof.