| A - material processing equipment |
| B - equipment for production, transport and distribution of concrete, mortar and rendering mixes |
| C - lifting gear |
| D - equipment for earthmoving and soil compaction |
| E - road construction machinery |
| F - railway track construction equipment |
| G - floating equipment |
| H - tunnel and mining construction equipment |
| J - pile drivers and extractors, soil injection equipment |
| K - drilling equipment, diaphragm wall equipment |
| L - equipment for pipe jacking and pipeline construction |
| M - equipment and plants for decontamination and environment protection |
| P - transport vehicles |
| Q - air compressors, pneumatic tools |
| R - equipment for power generation, transformation and distribution |
| R.0 - generating sets |
| R.1 - transformers |
| R.2 - power distribution boxes for construction sites |
| R.2.0 - power distribution cabinets |
| R.2.1 - power connection cabinets, type A |
| R.2.2 - power connection and distribution cabinets, type AVEV |
| R.2.3 - power group distribution cabinets, type GV/HV |
| R.2.4 - power connection cabinets for equipment, type V....K/T |
| R.2.5 - distribution - final distribution cabinets, type VEV |
| R.2.6 - final distribution cabinets type EV |
| R.2.7 - racks for construction site distribution boards |
| R.2.8 - withdrawable-unit distribution system |
| R.2.80 - drawer-type distribution cabinet |
| R.2.81 - rack-mounting unit for rack-type distribution cabinet |
| R.3 - switching equipment, frequency converters |
| R.4 - electric motors |
| R.5 - miscellaneous electrical equipment |
| R.6 - not used |
| R.7 - Steam generators, water heaters, driers |
| R.8 - combustion engines |
| R.9 - not used |
| S - hydraulic cylinders and hydraulic units |
| T - centrifugal and piston pumps, pipelines |
| U - formwork and scaffolds |
| W - workshop machines and equipment |
| X - construction site accomodations, containers |
| Y - equipment for surveying, laboratory, office, communication, monitoring, kitchen |
