1
Chemical compositions for water treatment; Industrial salts for water purification
7
Filtering machines, separators and centrifuges including water separators [machines]; Waste management and recycling machines
11
Water purification, desalination and conditioning installations including water treatment apparatus for water softening for domestic use, waste water treatment tanks for household purposes; Sterilization, disinfection and decontamination equipment including water treatment apparatus for water purification; Filters for industrial and household use including water treatment filters
19
Building and construction materials and elements, not of metal; Pipes and tubes, and fittings therefor, including valves, non-metallic, insulated pipes (Non-metallic -) for water, non-metallic conduits for water discharge or water distribution; Structures and transportable buildings, not of metal including water tanks (non-metallic -), potable water reservoirs of non-metallic materials, water tanks of masonry for household purposes
37
Services relating to repair of water treatment apparatus
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