Oficialūs aprašymai pateikiami originalo kalba (anglų).
This class includes: - test drilling, test boring and core sampling for construction, geophysical, geological or similar purposes
This class excludes: - drilling of production oil or gas wells, see 06.10, 06.20 - test drilling, associated with extraction of petroleum or gas, see 09.10 - test drilling and boring support services (e.g. associated with mining activities), see 09.90 - water well drilling, see 42.21 - geothermal drilling, see 42.21 - shaft sinking, see 43.50 - exploration of oilfields and gas fields, geophysical, geological and seismic surveying, see 71.12