B02 | Machinery and piping work |
E06 | Sections, foundations, pillars, structural units and bulkheads |
G05 | Fluid valves & other armatures |
G06 | Purification plants & fluid treatment |
H07 | Boilers, burners and incinerators |
H08 | Evaporators, condensers and receivers |
M08 | Sanitary & waste equipment |