| 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 |
| K.0 - rock drilling equipment and accessories |
| K.1 - hydraulic rotary and percussive drilling rigs with accessories |
| K.2 - rotary drilling implement hydraulic for dry drilling method with accessories |
| K.3 - special drilling machines |
| K.4 - casing machines and accessories |
| K.5 - miscellaneous drilling rigs and drilling winches |
| K.6 - casings and drilling tools for rope excavator operation |
| K.7 - augers |
| K.8 - tools, string drills and accessories for flush-boring system |
| K.9 - diaphragm wall equipment and miscellaneous drilling equipment |
| K.9.0 - diaphragm wall milling cutter equipment and accessories |
| K.9.1 - tools for diaphragm wall construction |
| K.9.2 - casing elements, extracting equipment and accessories for diaphragm wall construction |
| K.9.20 - stop end tube |
| K.9.21 - stop end tube shoe |
| K.9.22 - lifting cap for stop end tube |
| K.9.23 - flat joint elements |
| K.9.3 - extractors for casing elements |
| K.9.4 - not assigned |
| K.9.5 - miscellaneous drilling equipment |
| K.9.6 - recovery equipment for drilling and diaphragm wall material |
| 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 |
| 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 |
