7
Sewage disposal and pumping equipment and parts therefor; oil and water separators; sewage and wastewater pumps; marine bilge pumps; sludge dewatering units; solids/liquids separation units; oil and grease separation units; replacement parts for oil and water separators; oil separators; water separators; aerators for sewage and wastewater treatment plants; sewage pumping stations; replacement parts therefor; parts and fittings for all the aforesaid goods
11
Water and wastewater treatment systems; aeration units aerobic, anaerobic and /or anoxic biological treatment installations; brine making installations; carbon absorption and/or filtration installations; chemical feeding and/or storage installations; purification, demineralization, and/or disinfectant installations; dissolved air flotation installations; gravity, pressure and/or fibrous depth micro filtration installations; flash mixers and/or flocculation units; installations for water and/or fluid filtration; water filtration machines; grit removal and filtration units; ion exchange filtration installations; marine bilge and wastewater purification units; screen purification units; ultra filtration membrane units; filtration membranes; water and wastewater purifying and treating equipment; clarifiers and biological treatment reactors and parts and fittings therefor for residential and municipal water works and industrial plants; sludge concentrations; aerobic sewage treatment units; filtering units for separating solid particles from liquids for commercial, industrial and municipal use; parts and fittings for all the aforesaid goods