SEWERS (SEWERAGE)
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BTSEWERAGE SYSTEMS + SEWERAGE PROCESSES
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UDC628.24*1
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Descriptor GERABWASSERLEITUNGEN (KANALISATION)
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Descriptor ENGSEWERS (SEWERAGE)
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Descriptor FRECANALISATIONS D'ÉVACUATION (ÉGOUTS)
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Variant GERLEITUNGEN/ABWASSERLEITUNGEN (KANALISATION)
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NTWASTEWATER DISCHARGE (SEWERAGE)
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NTSEWER CROSSINGS AND INVERTED SYPHONS (SEWERAGE)
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NTSEWER PIPE CROSS-SECTION + SEWER DISCHARGE AREA CROSS-SECTION
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NTCLOGGING AND FRACTURE OF SEWERS
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RTHOUSE DRAINAGE BELOW GROUND (BUILDING SERVICES)