| 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 |
| L.0 - pipe-jacking equipment, non man-size |
| L.1 - equipment for horizontal pipe jacking, man-size |
| L.2 - trench excavators, trench cutting machines |
| L.3 - equipment for the construction of ducts and and pipe-lines |
| L.4 - miscellaneous equipment and accessories for the construction of ducts and and pipelines |
| L.4.0 - floating equipment |
| L.4.1 - miscellaneous equipment for pipe handling |
| L.4.10 - special winch |
| L.4.11 - roller-equipped pipe lowering carriage |
| L.4.12 - pipe spreader beam |
| L.4.13 - pipe lifting device, roller system |
| L.4.14 - tripod with hand-winch |
| L.4.15 - pipe puller |
| L.5 - testing and monitoring equipment for pipelines |
| 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 |
