9
Apparatus, instruments and systems for the centralised technical management of railway infrastructures and installations; Apparatus for measuring and controlling catenary systems, railway traffic signalling apparatus
19
Building materials and elements (non-metallic) for the construction, maintenance, repair and renovation of catenary systems and public works of all kinds
37
Construction, assembly, installation, repair, upkeep and maintenance of railway equipment and in particular of catenary systems; Construction, assembly, installation, start-up, maintenance and upkeep of railway signalling systems; Construction, assembly, installation, start-up, maintenance and upkeep of electrical installations and equipment; Supplying of electrical power to railway installations and equipment; Public works (construction); Construction information; Building consultancy; Supervision (management) of works for construction, installation, repair and fitting-out of railway equipment, and in particular of catenary systems and railway signalling systems; Rental of construction machines and construction equipment
42
Engineering, advice, consultancy, research, analysis, technical project studies and technical appraisals performed by engineers in the field of catenary systems and railway signalling; Tests, assays and validation relating to apparatus, instruments, systems, equipment and materials in particular in the fields of catenary systems and railway signalling; Quality control; Engineers' work; industry research; Technical studies; Technical advice and consultancy in the field of construction and maintenance of railway infrastructure equipment; Construction drafting