Assembly and erection of prefabricated constructions

**Includes:** - installation, assembly and erection services of prefabricated buildings - installation, assembly and erection services of other prefabricated structures and constructions - installation services of all types of street furniture (e.g., bus shelters, benches, telephone booths, public toilets, etc.)

**Excludes:** - erection services of prefabricated steel parts for buildings and other structures, cf. 54550