Energetics, Natural Resources
- Electricity Supply, Equipment, Materials - 188
- Energetics - 133
- Environment Protection, Utilisation - 270
- Fertilisers, Mineral Materials - 117
- Forestry, Forest Technology - 733
- Fuel, Oil Products, Gas-station Equipment - 515
- Gas Supply, Equipment, Materials - 30
- Geology, Geological Research, Minerals - 263
- Heating Supply, Equipment, Materials - 542
- Planning, Cartography, Geodesy - 298
- Stone, Stone Processing - 373
- Water Supply, Equipment, Materials - 273
