37 Installation, maintenance, servicing, repair, refurbishment, restoration and cleaning of underground inspection apparatus, instruments, equipment and systems and of parts and fittings therefor; installation, maintenance, servicing, repair, refurbishment, restoration and cleaning of apparatus, instruments, equipment and systems for inspection of pipes, pipelines, drains and sewers and of parts and fittings therefor; installation, maintenance, servicing, repair, refurbishment, restoration and cleaning of cameras and image recording apparatus and of parts and fittings therefor; installation, maintenance, servicing, repair, refurbishment, restoration and cleaning of machines for repairing and lining of pipes, pipelines, drains and sewers and of parts and fittings therefor; installation, maintenance, servicing, repair, refurbishment, restoration and cleaning of robots for repairing and lining of pipes, pipelines, drains and sewers and of parts and fittings therefor; repair and lining services for pipes, pipelines, drains and sewers; installation, maintenance, servicing, repair, refurbishment, restoration and cleaning of machine tools and of parts and fittings therefor, power operated tools and of parts and fittings therefor, power operated cutting tools and of parts and fittings therefor, power operated cutters and of parts and fittings therefor, pneumatic cutters and of parts and fittings therefor, power operated grinding tools and of parts and fittings therefor, power operated milling tools and of parts and fittings therefor, cutting heads [parts of machines], milling heads [parts of machines], spraying machines, power-operated sprayers, spraying machines for spray lining of pipes; rental of tools and machines for use in installation, maintenance, servicing, repair, refurbishment, restoration and cleaning purpose, namely, machine tools and of parts and fittings therefor, power operated tools and of parts and fittings therefor, power operated cutting tools and of parts and fittings therefor, power operated cutters and of parts and fittings therefor, pneumatic cutters and of parts and fittings therefor, power operated grinding tools and of parts and fittings therefor, power operated milling tools and of parts and fittings therefor, cutting heads [parts of machines], milling heads [parts of machines], spraying machines, power-operated sprayers, spraying machines for spray lining of pipes; information, advisory and consultancy services in relation to all of the aforesaid