0610 Extraction of crude petroleum
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0610 Extraction of crude petroleum
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- 06.10.1 Petroleum oils and oils obtained from bituminous minerals, crude
- 06.10.10 Petroleum oils and oils obtained from bituminous minerals, crude
- 06.10.2 Bituminous or oil shale and tar sands
- 06.10.20 Bituminous or oil shale and tar sands