Energetics, Natural Resources
- Electricity Supply, Equipment, Materials - 172
- Energetics - 166
- Environment Protection, Utilisation - 24
- Fertilisers, Mineral Materials - 40
- Forestry, Forest Technology - 215
- Fuel, Oil Products, Gas-station Equipment - 148
- Gas Supply, Equipment, Materials - 14
- Geology, Geological Research, Minerals - 20
- Heating Supply, Equipment, Materials - 213
- Planning, Cartography, Geodesy - 33
- Stone, Stone Processing - 182
- Water Supply, Equipment, Materials - 61
