7
Machines for cleaning and decontaminating surfaces by means of nitrogen blasting; machines for scalping concrete by means of nitrogen blasting; machines for cutting materials by means of nitrogen blasting
37
Installation, repair, maintenance, and cleaning of machines using nitrogen blasting and used in the nuclear field for surface decontamination, concrete scalping and materials cutting; cleaning of materials in nuclear workshops and nuclear installations with machines using nitrogen blasting
40
decontamination of machines using nitrogen blasting and used in the nuclear field for surface decontamination, concrete scalping and materials cutting; materials treatment, namely, remediation in the nature of treatment, decontamination, scalping and cutting of materials in nuclear workshops and nuclear installations with machines using nitrogen blasting
42
Scientific and technological services, namely, scientific study, scientific research and analysis in the field of nuclear remediation, nuclear decontamination, nuclear clean-up, materials cutting, and devices and installations in the nuclear field