7 Replacement parts for filtering machines for use in industrial, agricultural, municipal, environmental purposes, namely, mining, surface water filtration, and oil and gas extraction, namely, industrial screens, well screens, screen panels, and filtering wells; Industrial screens and screen panels for industrial, agricultural, municipal, environmental, mining, surface water filtration and oil and gas purposes, namely, industrial screens and screen panels as parts of waste processing machines sold separately from waste processing machines, machine tools, namely, industrial screens and screen panels and agricultural implements other than hand-operated waste pumps, namely, industrial screens and screen panels; basin covers, gullies, weirs, grates, grilles, inlets, circulation agitators and rotary sprayers being machine parts for machines for the purpose of storage, treatment, conveyance and discharge of liquids, waste of all kinds, screenings, sewage sludge and filter cakes, as far as included in class 7; aeration rotors and aeration gyros being parts of waste processing machines sold separately from waste processing machines; nozzles being parts of waste processing machines sold separately from waste processing machines; nozzle sprayers being parts of machines, namely, particular power-operated sprayers; fixed, travelling, and rotating basin bridges and circulation bridges as parts of machines; filters as parts of waste processing and fluid treatment machines sold separately from such machines; filter bands as parts of waste processing machines sold separately from waste processing machines; filter cake bunkers and conveyors as parts of waste processing and fluid treatment machines sold separately from such machines; filtering machines for chemical processing; industrial machine presses, namely, filter presses; machine tools, namely, clamp connectors for piping as parts of machines; conveyor belts, namely, drag conveyors; piston pumps for machines; machines and machine tools for treatment of materials and for manufacturing; machines and mechanical devices for pumping, treatment and storing of sewage sludge; filtering machines for oil, gas, sludge, and wastewater processing, namely, filtering wells consisting of pump, filter and pipeline, with the aforementioned machines being for industrial, agricultural, municipal, environmental, mining, surface water filtration, and oil and gas purposes; machines and mechanical devices for separating solid materials and fluids; diaphragm pumps as parts of machines; machine parts, namely, surface aerators being parts of waste processing machines sold separately from waste processing machines; pumps for machines; pumps being parts of machines; rabble rakes and raking screens being material separation components of sifting machines; industrial machine presses, namely, presses for screening materials for sifting, sorting, and separation purposes; shredding machines for screenings, not being paper shredders for offices; rake cleaners being parts of sifting machines; tubes being fitted parts of machines; valves being parts of machines, namely, non-return flap valves; stirrers, namely, mechanical mixing machines; gravel, stone, and sand sorting and electric industrial washing machines, namely, grit classifiers, grit washers; sand fenders being parts of sand sorting machines; valves being parts of machines, namely, sliding valves; sliding panels being parts of machines for sorting sludge, sand, and particulate matter; sieves being machine parts; sifting machines; floating matter collecting machines; sludge collecting machines; waste compactors, namely, sludge compactors; waste material conveying machines, namely, sludge conveyors; sludge pumps; bucket wheels being parts of sludge collection machines; trickling filters for sludge collecting machines; underwater aerators being machines; circulating screws in the nature of parts of fluid treatment machines; machine tools for removing waste material, namely, water separators