| 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 |
| H.0 - hydraulic drilling rig for tunnel driving |
| H.1 - lining equipment for tunnel driving operations |
| H.2 - roadheader |
| H.3 - tunnelling machines (TVM) |
| H.4 - drilling equipment for well boring and shaft construction |
| H.5 - excavators, loading equipment, mobile loaders and dumpers |
| H.6 - rail-mounted equipment and attachments for tunnel construction |
| H.6.0 - locomotives and accessories |
| H.6.1 - rail-mounted dumper wagons |
| H.6.2 - concrete transport skips for the construction of tunnels and galleries |
| H.6.3 - passenger cars |
| H.6.4 - material transport wagon |
| H.6.5 - attachments for rail-mounted transportation equipment |
| H.6.6 - rails and accessories for the construction of tunnels and galleries |
| H.6.60 - rail |
| H.6.61 - portable track |
| H.6.62 - standard rail switch |
| H.6.63 - rail switch, symmetrical type |
| H.6.64 - double-rail switch |
| H.6.65 - california switch |
| H.6.66 - rail crossing device |
| H.6.67 - rail turntable |
| H.7 - miscellaneous conveyors and silos for excavated materials |
| H.8 - ventilation duct booster fans, dust collecting systems and accessories |
| H.9 - caisson air locks and miscellaneous equipment for the construction of tunnels and galleries |
| 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 |
| 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 |
