Energetics, Natural Resources
- Electricity Supply, Equipment, Materials - 230
- Energetics - 185
- Environment Protection, Utilisation - 276
- Fertilisers, Mineral Materials - 127
- Forestry, Forest Technology - 812
- Fuel, Oil Products, Gas-station Equipment - 559
- Gas Supply, Equipment, Materials - 30
- Geology, Geological Research, Minerals - 264
- Heating Supply, Equipment, Materials - 590
- Planning, Cartography, Geodesy - 306
- Stone, Stone Processing - 411
- Water Supply, Equipment, Materials - 285
