6
[ doors, pressure doors, safety doors, all aforementioned products made of metal ]
7
Screening/sifting machines for industrial and municipal waste water treatment; Conveyor machines; Cleaning machines for industrial and municipal waste water; Separators for the separation of grit and grease from waste water; Screening/sifting systems comprised of bars or perforated plates to remove solids from water; Waste material sorting machines, Waste material removal machines; Machines for separating solids from liquids; Washing machines; [ Centrifuges; ] Waste material conveying machines; [ Machines for conveying and transporting sludge; Waste material crushing machines; ] Sand cleaning machines; Sorting machines for the separation of organic material from inorganic material; Sand sorting machines; Separators for solids from liquids; Screening systems comprised of bars or perforated plates to remove solids from water; Sand separators; [ Machines for separating solids from sludge; ] Machines for conveying solids; Machines for thickening sludge; [ Flotation systems comprised of a tank and a system to dissolve air in water; ] Grease separators; [ Equipment for sedimentation basins/tanks, namely, de-sludgers; ] Machine tools for processing sludge, namely, [ belt press, centrifuge, and ] screw presses
11
Machines for treating waste materials, namely, screenings, grit, sludge; water filters for domestic and industrial use; Water separators; Sludge press for dewatering of domestic and industrial sludge; Filtering machines to remove fine solid particles from domestic and industrial waste water; Machines for waste water purification processes; Machines for treating waste material, namely, grit, screenings, sludge, biological waste; Sand drying machines; [ Waste material drying machines; ] Filter systems for removing fine particles from water comprised of a tank with a filter medium made of sand or cloth and a backwash-system for the filter medium comprised of pump operated spray nozzles or air-lift pump with separation chamber; Sewage treatment plants; Water purification plants; Water purification devices and machines, namely, screens and settlement tanks; Water filters; Water filtering devices; Machines for treating rainwater;[ Machines for purifying rainwater; Machines for screening rainwater; ] Machines for treating mixed water; Machines for purifying mixed water; Machines for screening mixed water; [ Reverse osmosis systems comprising membrane modules with pumps and electrical control; ] Machines for drinking water treatment, namely, sludge dewatering machines, settlement tanks, filtering machines; [ Systems for drinking water treatment comprising sludge dewatering machines, ] filtering machines; [ Equipment components for drinking water storage tanks, namely, technical doors; ] Machines for purifying river water