Energetics, Natural Resources
- Electricity Supply, Equipment, Materials - 138
- Energetics - 132
- Environment Protection, Utilisation - 21
- Fertilisers, Mineral Materials - 31
- Forestry, Forest Technology - 184
- Fuel, Oil Products, Gas-station Equipment - 122
- Gas Supply, Equipment, Materials - 14
- Geology, Geological Research, Minerals - 19
- Heating Supply, Equipment, Materials - 181
- Planning, Cartography, Geodesy - 28
- Stone, Stone Processing - 154
- Water Supply, Equipment, Materials - 53
