| 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 |
| S - hydraulic cylinders and hydraulic units |
| S.0 - hydraulic flat jacks, without set collar |
| S.1 - hydraulic cylinder, single-acting |
| S.2 - hydraulic cylinder, double-acting |
| S.2.0 - hydraulic cylinder, double-acting, without set collar, steel |
| S.2.00 - hydraulic jack, double-acting, without set collar, steel, 700bars |
| S.2.1 - hydraulic cylinder, double-acting, without set collar, light metal |
| S.3 - hydraulic jack, standard |
| S.4 - other hydraulic cylinders |
| S.5 - hydraulic prestressing- and wedging jacks |
| S.6 - hydraulic pumps and hydraulic power units |
| S.7 - instrumentation and control equipment for hydraulic systems |
| S.8 - hydraulic units for moving of building structures |
| S.9 - not assigned |
| 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 |
