37 Installation, maintenance and repair of machines and industrial equipment, namely, electronic machines and mechanical material, namely, equipment, machines and devices in the fields of energy production, nuclear, petroleum, chemical, pharmaceutical, space, aeronautical, nautical, automotive, railway, steel, electronics, telecommunications and computing industries; industrial building construction information; industrial construction supervision; providing information on repairs, installation, maintenance and repair of electronic machines and mechanical material, namely, equipment, machines and devices in the fields of energy production, nuclear, petroleum, chemical, pharmaceutical, space, aeronautical, nautical, automotive, railway, steel, electronics, telecommunications and computing industries, computer installation and repair, and repair of electronic machines and mechanical material, namely, equipment, machines and devices in the fields of energy production, nuclear, petroleum, chemical, pharmaceutical, space, aeronautical, nautical, automotive, railway, steel, electronics, telecommunications and computing industries; chemical plant and nuclear power plant construction; installation and maintenance of electronic machines, computer installation and repair; installation and maintenance of electronic machines and mechanical material, namely, equipment, machines and devices in the fields of energy production, nuclear, petroleum, chemical, pharmaceutical, space, aeronautical, nautical, automotive, railway, steel, electronics, telecommunications and computing industries