Biological Wastewater Treatment Aerators; Wastewater Treatment Systems Comprising Pretreatment Units, Biological Treatment Units, Clarification and Sedimentation Tanks, Advanced Treatment Units, Motors, Pumps and Pipelines; Systems for the Breeding, Rearing, Maintenance and Feeding of Fish Comprising Fish Tanks, Fish Wastewater Treatment Units, Pumps and Pipelines; Biological Sludge Treatment Systems Comrpising Sludge Thickening Units, Clarification Tanks, Advanced Treatment Units, Motors, Pu...

INSTALLATIONS FOR REARING ANIMALS AND FATTENING ANIMALS, ESPECIALLY FOR REARING FISH AND FATTENING FISH AND COMPONENT PARTS THEREOF-NAMELY, FISH TANKS, FILTER TANKS, CONNECTING PIPES AND PUMPS, PREPARATION/CONDITIONING TANKS, CIRCULATING HOLLOW BODIES FILLED WITH FIBROUS MATERIAL, INTERCHANGEABLE CARTRIDGES FILLED WITH FIBROUS MATERIAL FOR SUCH HOLLOW BODIES, AND FILTRATION MATERIALS, ESPECIALLY FILTRATION GRAVEL, ALL THE AFORESAID GOODS ARE SOLD TOGETHER AS A UNIT