Energetics, Natural Resources
- Electricity Supply, Equipment, Materials - 202
- Energetics - 155
- Environment Protection, Utilisation - 270
- Fertilisers, Mineral Materials - 123
- Forestry, Forest Technology - 754
- Fuel, Oil Products, Gas-station Equipment - 529
- Gas Supply, Equipment, Materials - 30
- Geology, Geological Research, Minerals - 263
- Heating Supply, Equipment, Materials - 559
- Planning, Cartography, Geodesy - 301
- Stone, Stone Processing - 397
- Water Supply, Equipment, Materials - 280