| 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.3.0 - crawler tractor for pipeline construction |
| L.3.1 - pipe bending machines and accessories |
| L.3.2 - welding equipment and accessories |
| L.3.20 - automatic welding device for steel pipes |
| L.3.21 - automatic pipe-welding equipment for P.E. pipes |
| L.3.22 - inside centering device, mechanical operation |
| L.3.23 - inside centering device, pneumatical operation, mobile |
| L.3.24 - outside centering device, mechanical operation |
| L.3.25 - outside centering device, hydraulic operation |
| L.3.26 - oxyacetylene pipe-cutting equipment |
| L.3.27 - milling machine for the production of welding bevels |
| L.3.28 - welding seam preparation equipment, trimming knife system |
| L.3.3 - miscellaneous equipment for pipe handling |
| L.3.4 - tools for pipehandling |
| L.4 - miscellaneous equipment and accessories for the construction of ducts and and pipelines |
| 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 |
