Definition / Belongs to this divisionThis division includes:
- organization of a construction project for the construction of a building for later sale with the joint provision of financial, technical and physical assets
It does not belong to this sectorThis division excludes:
- construction of residential and non-residential buildings, see 41.20
- architectural and engineering activities, see 71.1
- project management, construction project related services, see 71.1
It does not belong to this branch - Hungarian supplementThis division excludes - Hungarian supplement:
- road management activities, see 52.21
- sale and purchase of real estate, see 68.10
- real estate brokerage, see 68.31

Definition / Belongs to this divisionThis subsector includes all types of glass produced by any means and glass products.

Definition / Belongs to this divisionThis division includes optical devices and lenses e.g. binoculars, microscopes (except electron, proton microscopes), telescopes, prisms and various lenses (except ophthalmic); coated or polished lenses (except ophthalmic); assembly of lenses (except ophthalmic) and photographic equipment e.g. manufacture of cameras and light meters.

This division includes:
- manufacture of optical mirrors
- manufacture of binoculars
- manufacture of optical positioning equipment
- manufacture of optical magnifiers
- manufacture of optical instruments for precision machine tuning
- manufacture of optical shape and size comparators
- manufacture of cameras (optical and digital cameras)
- manufacture of motion picture projectors and flat panel projectors
- manufacture of giant projectors
- manufacture of optical measuring and control equipment and devices (eg fire alarm equipment, photographic light meter, rangefinder)
- manufacture of lenses, optical microscopes, binoculars and telescopes
- manufacture of laser equipment
It does not belong to this sectorThis division excludes:
- manufacture of computer projectors, see 26.20
- manufacture of (industrial) television and video cameras used in the production process, see 26.30
- manufacture of camcorders, see 26.40
- manufacture of complete equipment with laser, see the manufacture of machine type (eg medical laser equipment), see 26.60
- manufacture of photocopiers, see 28.23
- manufacture of ophthalmological products, see 32.50
It does not belong to this branch - Hungarian supplementThis division excludes - Hungarian supplement:
- manufacture of unworked optical elements made of glass, see 23.19

Definition / Belongs to this divisionThis division includes:
- printing of the magazine and other periodicals published less than four times a week
- book and brochure, musical and musical manuscript, map, atlas, poster, advertising catalog, brochure and other printed advertising, postage stamp, tax stamp, title deed, check and other securities, smart card, album, printing of diaries, calendars, and other commercial forms, personal stationery or stationery and other forms by letterpress, offset, gravure, flexographic, screen printing and other printing machines, duplicating machines, computer printers, embossing presses; including high-speed copying
- pressing directly on textiles, plastics, glass, metal, wood and ceramics.

Printed material is typically protected by copyright.
also belongs to this sectorThis division also includes:
- printing of the label, printed marking (by plane printing, gravure printing, flexographic printing, and other methods)
It belongs to this branch - Hungarian supplementThis division includes - Hungarian supplement:
- screen printing on textiles and clothing
It does not belong to this sectorThis division excludes:
- manufacture of office stationery, if not the printed information specifies the nature / purpose of the product (notebook, filing file, register, business book, business forms, etc.), see 17.23
- publishing of printed products, see 58.1