bars made of glass; containers of glass; electrical insulators made of glass; food and milk irradiation equipment; glass bricks; glass fibers for packing; glass for light bulb; glass insulating fittings; glass lampshade, glass lampshades; glassware; hygienic glass, hygienic glassware; laboratory glassware, hygiene of pharmacy; optical glass; pharmaceutical glass, pharmaceutical glassware; rods made of glass; tubes made of glass; watch glasses