Energetics, Natural Resources
- Electricity Supply, Equipment, Materials - 160
- Energetics - 159
- Environment Protection, Utilisation - 23
- Fertilisers, Mineral Materials - 38
- Forestry, Forest Technology - 206
- Fuel, Oil Products, Gas-station Equipment - 141
- Gas Supply, Equipment, Materials - 14
- Geology, Geological Research, Minerals - 19
- Heating Supply, Equipment, Materials - 203
- Planning, Cartography, Geodesy - 31
- Stone, Stone Processing - 176
- Water Supply, Equipment, Materials - 58
