Energetics, Natural Resources
- Electricity Supply, Equipment, Materials - 142
- Energetics - 138
- Environment Protection, Utilisation - 21
- Fertilisers, Mineral Materials - 36
- Forestry, Forest Technology - 191
- Fuel, Oil Products, Gas-station Equipment - 125
- Gas Supply, Equipment, Materials - 14
- Geology, Geological Research, Minerals - 19
- Heating Supply, Equipment, Materials - 185
- Planning, Cartography, Geodesy - 30
- Stone, Stone Processing - 168
- Water Supply, Equipment, Materials - 56
