06
Settling tanks, sludge putrefaction pits, pool covers,
ducts, pipes, valves of cast steel, valves of steel,
overflows, non-return valves, gratings, duckboards, sand
separation pits, distribution devices (piping), fixed
scraper bridges, frames and plates for filter presses, silos
for filter press cakes; all the aforesaid goods for
completing installations for storage and treatment (for
instance purification, preparation, disinfection,
ventilation, iron removal, phosphorus removal,
denitrification, decarbonization, irradiation) and for
transport and disposal of water, detritus, sludge or filter
press cakes; construction elements for drainage of rain
water and gray water, namely drains (and siphons) of roofs,
cellars, balconies, wash-up rooms, floors, paths, hangars,
roads and bridges; drainage grates, gutters, manhole covers,
manhole elements, well ladder rungs, gutter covers, channels
and large floor outlets, valves, cleaning valves, check
valves, protection against the water back-flow, flushing
valves, flushing traps, drain pipes, plates for shafts and
gullies; all the aforesaid goods made entirely or partly of
metal; safety seals against hydrocarbon leaks in pipe lines
07
Machines and parts thereof for storage, treatment (for
instance purification, preparation, disinfection,
ventilation, iron removal, phosphorus removal,
denitrification, decarbonization, irradiation), for
transport and disposal of water, detritus, sludge or filter
press cakes, in particular valves, weirs, sand sifters, sand
washers, sieves, sifters, raking machines, rotating or
mobile scraper bridges, surface aerators, aeration rotors,
aeration turbines, submersible aerators, slow-running
mixers, high-speed mixers, mixing screws, propellers for
blending, mixing bridges, surface scrapers, scrapers, sand
scrapers, rotary distributors, sludge thickeners, mud
conveyors, scraper conveyors, trough wheels, waste water
pumps, slurry pumps, waste crushing machines, presses for
waste, filter presses, frames and plates for filter presses,
apparatus for circulation and mixing, for introducing gases,
for vaporization thereof or spinning of surface layers for
treating digested slurry; filter press cake conveyors;
mechanical apparatus for drainage of rain water and gray
water, namely hydrocarbon separators, decantable material
separators, valves, flushing valves, vacuum pumps for use in
cellars; machines and apparatus for use in the manufacture
of concrete building materials, namely mixing machines with
integrated metering devices, machines for the manufacture of
cement blocks, transport and packaging machines, molds,
complete manufacturing vibrators and installations
constructed from the aforesaid goods, foundry machines and
their components, namely molding machines, molds, core
forming machines, centrifuges for sand, unmolding machines,
apparatus for preparing sand, hydraulic control units,
complete manufacturing plants composed of the aforesaid
goods
09
Electric switches, relays, program switches, time-delay
switches, programming devices, distribution boxes, control
centers and panels, apparatus for measuring, monitoring and
analysis and laboratories, in particular for water
preparation and effluent treatment, apparatus for measuring,
signaling, checking (supervision), display and processing of
data, installations made of the aforesaid apparatus for
monitoring and controlling operations, especially for
installations for treating sewage; electromechanical
equipment for use in the manufacture of concrete building
materials, in particular metering and control devices;
electric (remote) control equipment for the foundry
industry
11
Apparatus and their parts for storage and treatment (for
instance purification, preparation, disinfection,
ventilation, iron removal, phosphorus removal,
denitrification, decarbonization, irradiation) for transport
and disposal of water, detritus, sludge or filter press
cakes, in particular valves, weirs, sand classifier filters,
sifter filters, devices for digesters; installations for
clarification (decanting) composed of the goods listed in
classes 6, 7, 11 and 20; incineration and combustion
apparatus for waste or sludge; bacterial beds and filler
materials therefor; bathtubs, sinks, built-in washbasins,
washstands, longitudinal and circular collective washbasins,
bidets; all the aforesaid goods made entirely or partly of
metals, stoneware and/or plastic material; boilers and
drying apparatus for use in the manufacture of cement
blocks; installations for aspiration and purification of air
and gases consisting mainly of fans, filters and separators
19
Settling tanks, putrefaction pits, pool covers, ducts, rigid
pipes (for building), overflows, non-return valves,
gratings, duckboards, sand separation pits, distribution
devices, fixed scraper bridges, silos for filter press
cakes; all the aforesaid goods for completing installations
for storage and treatment (for instance purification,
preparation, disinfection, ventilation, iron removal,
phosphorus removal, denitrification, decarbonization,
irradiation) as well as for transport and distribution of
water, detritus, sludge or filter press cakes; all the
aforesaid goods made entirely or partly of concrete;
construction elements for drainage of rain water and gray
water, namely drains (and siphons) of roofs, cellars,
balconies, wash-up rooms, floors, paths, hangars, roads and
bridges; drainage grates, gutters, manhole covers, manhole
elements, gutter covers, channels and large floor outlets
20
Well ladder rungs; safety seals against hydrocarbon leaks in
pipe lines
37
Construction and repair work, namely building of structures;
construction of (turnkey) installations in civil
engineering
42
Construction projects, particularly with respect to
organization; engineering services, especially economic
projects in the field of dehydration, water supply,
preparation of water and treatment of sewage water;
preparation of construction projects and plans from a
technical point of view; services provided by engineers and
architects in the field of construction, especially projects
relating to water, treatment installations, networks for
distribution and sewerage, water preparation installations,
water, air or gas treatment installations, sludge, urban
waste or trash treatment installations; engineering
services, particularly for static calculations, plan
drafting, technical projects in the field of dehydration,
preparation and distribution of water, as well as in the
field of treatment of waste water; management of research,
measurement and analysis in the field of pollution;
development of research and expert reports in the aforesaid
field; testing of materials; pollution monitoring for water,
gas and air, water tanks as well as monitoring of the
operation of installations for treating drinking water and
sewage; operation of clarification pilot installations for
others
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