C
CHEMISTRY; METALLURGY
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C02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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C02F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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2201/00
Apparatus for treatment of water, waste water or sewage
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C02F2201/002
Construction details of the apparatus
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C02F2201/004
Seals, connections
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