Energetics, Natural Resources
- Electricity Supply, Equipment, Materials - 163
- Energetics - 161
- Environment Protection, Utilisation - 23
- Fertilisers, Mineral Materials - 37
- Forestry, Forest Technology - 213
- Fuel, Oil Products, Gas-station Equipment - 144
- Gas Supply, Equipment, Materials - 14
- Geology, Geological Research, Minerals - 20
- Heating Supply, Equipment, Materials - 205
- Planning, Cartography, Geodesy - 31
- Stone, Stone Processing - 177
- Water Supply, Equipment, Materials - 59
