06
Reinforcing elements of steel for reinforced concrete, steel
tendons for pre-stressed concrete in the form of rods, wires
or flex, tension elements of steel for ground and rock
anchors, anchoring elements therefor, namely anchoring
bolts, screws, sleeves, shims, cladding tube of metal
19
Prefabricated building parts for buildings and/or building
elements of concrete, reinforced concrete and pre-stressed
concrete, in particular bridges and superstructure supports,
wall, facade and roof elements, supports and piers, shells,
floating elements, in particular pontoons, prefabricated
houses and garages; prefabricated concrete goods for
constructing cable channels and heating flues, in particular
shaped blocks for cable channels and heating flues, cable
shafts; prefabricated concrete goods for municipal civil
engineering, in particular clarifying installations,
separators for light density liquids and fats, sand and silt
chambers, settling sumps, pipes of reinforced and
pre-stressed concrete; railway sleepers, masts and posts of
reinforced and pre-stressed concrete; reinforcing elements
of fibre cement for concrete, tension elements of fibre
cement for ground and rock anchors, and for anchoring
elements therefor, namely anchoring bolts, screws, sleeves,
shims of plastic
37
Structural and civil engineering, in particular demolition,
excavation, bridge construction, constructing permanent ways
for railways, earthworks, erecting scaffolding and sliding
mouldings and climbing forms, and erecting buildings of
reinforced concrete using sliding mouldings and climbing
forms, installation of subterraneous curtains and posts,
fixing ground anchors and rock anchors, installation and
building of industrial installations, installation of
tension rods, in particular for suspension bridges and
cable-stayed bridges, plastering and tile laying,
shipbuilding, chimney construction, road and path building,
and building ways for rail-borne vehicles, tunnel and mining
gallery construction, underground pipeline construction,
water constructions; reinforcing buildings with reinforced
concrete and pre-stressed concrete; repair and maintenance
of buildings, maintenance of installations for purifying
drinking water, service water and waste water; construction
supervision and support services, namely, minor repair and
maintenance work for on-site apparatus, maintenance and
inspection; rental of machines, tools and apparatus for
building construction