Main prod. Group survey
deu
fra
esp
41
Environmental, waste disposal and recycling technology
Water treatment, waste water treatment plants and sludge conditioning plants
Plants for soil, air and water treatment
1734.19
Soil washing systems
1734.25
Drainage systems for water and waste water treatment
1734.37
Water aeration installations
1734.52
Ion exchangers for chemical purposes
1734.60
Air treatment plants for dehumidification, desalting and dedusting
1734.72
Ozone plants for treatment and refining of water and air
1734.93
Vacuum sewer systems
1734.96
Water recovery plants
