19
Building materials and products not made of metal for
construction, surfacing, maintenance and renovation of
roads, traffic lanes, civil engineering structures,
platforms, sidewalks and any type of road surface; asphalt,
pitch, bitumen and emulsions of bitumen, gravel, sand,
artificial and natural stone, aggregates, slag, macadam;
bituminous building products and coatings for soils and road
pavements, bituminous binders for road construction and
maintenance; bituminous coatings; paving blocks and slabs,
not of metal
37
Construction, maintenance and repair of roads, traffic
lanes, civil engineering structures, road infrastructures,
bridges, platforms, sidewalks and any type of road surface;
information relating to construction of roads, traffic
lanes, civil engineering structures, road infrastructures,
bridges, platforms, sidewalks and any type of road surface;
supervision (management) of construction work for roads,
traffic lanes, civil engineering structures, road
infrastructures, bridges, platforms, car parks, sidewalks
and any type of road surface; asphalting
42
Design of roads, traffic lanes, civil engineering
structures, bridges, platforms, sidewalks, car parks and any
type of road surface; evaluations and assessments in the
fields of science and technology provided by engineers;
scientific and technical research; research and development
of new products for others; technical project studies;
construction drafting services; environmental
protection-related research; quality control
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