| 37 |
installation, maintenance and repair of power plants and power grids |
| 37 |
installation, maintenance and repair of pressure regulators |
| 37 |
installation, maintenance and repair of printing machines |
| 37 |
installation, maintenance and repair of printing machines and parts thereof |
| 37 |
installation, maintenance and repair of printing presses |
| 37 |
installation, maintenance and repair of printing presses and other machinery for use in the publishing industry |
| 37 |
installation, maintenance and repair of printing presses and parts thereof |
| 37 |
installation, maintenance and repair of pumps |
| 37 |
installation, maintenance and repair of pumps and pump stations |
| 37 |
installation, maintenance and repair of pumps and pumping stations |
| 37 |
installation, maintenance and repair of quality control apparatus |
| 37 |
installation, maintenance and repair of quality control apparatus for printing presses |
| 37 |
installation, maintenance and repair of railroad tracks |
| 37 |
installation, maintenance and repair of railway tracks |
| 37 |
installation, maintenance and repair of refrigerating apparatus |
| 37 |
installation, maintenance and repair of regulating, monitoring and control apparatus |
| 37 |
installation, maintenance and repair of remote control apparatus |
| 37 |
installation, maintenance and repair of remote control apparatus for changing printing plates |
| 37 |
installation, maintenance and repair of rollers for machines |
| 37 |
installation, maintenance and repair of rolling mills |
| 37 |
installation, maintenance and repair of safety equipment |
| 37 |
installation, maintenance and repair of sealing machines |
| 37 |
installation, maintenance and repair of security and authentication apparatus |
| 37 |
installation, maintenance and repair of security and safety equipment |
| 37 |
installation, maintenance and repair of sewerage systems |
| 37 |
installation, maintenance and repair of solar collectors |
| 37 |
installation, maintenance and repair of solar energy systems |
| 37 |
installation, maintenance and repair of solar installations for generating power |
| 37 |
installation, maintenance and repair of solar installations for generating power, solar collectors and photovoltaic modules |
| 37 |
installation, maintenance and repair of sorting machines |
| 37 |
installation, maintenance and repair of stairlifts |
| 37 |
installation, maintenance and repair of stairway lifts |
| 37 |
installation, maintenance and repair of standard lamps |
| 37 |
installation, maintenance and repair of steam condenser compressors and pumps |
| 37 |
installation, maintenance and repair of steam condensers |
| 37 |
installation, maintenance and repair of steam turbine compressors and pumps |
| 37 |
installation, maintenance and repair of steam turbines |
| 37 |
installation, maintenance and repair of street furniture |
| 37 |
installation, maintenance and repair of street lamps |
| 37 |
installation, maintenance and repair of street lights |
| 37 |
installation, maintenance and repair of surgical apparatus and instruments |
| 37 |
installation, maintenance and repair of surgical, medical, dental and veterinary apparatus and instruments |
| 37 |
installation, maintenance and repair of systems, machinery and apparatus for working and processing metals and sheet metal |
| 37 |
installation, maintenance and repair of telecommunications apparatus and instruments |
| 37 |
installation, maintenance and repair of telecommunications equipment |
| 37 |
installation, maintenance and repair of telephone and communication equipment |
| 37 |
installation, maintenance and repair of telephones |
| 37 |
installation, maintenance and repair of temperature control apparatus |
| 37 |
installation, maintenance and repair of thick-walled reactor compressors and pumps |
| 37 |
installation, maintenance and repair of thick-walled reactors |
