11
Screening systems and installations for storage and treatment of water; screening systems for use in separating solid matter and particulates from waste water; storm water control, overflow and management systems and installations; drainage and soak away systems and installations; parts and fittings for the aforesaid goods
37
Building construction in relation to apparatus, installations and systems for water supply and sanitary services, for control of water flow and for separation of solids and particulates from water and sewage; installation, commission and repair of apparatus, installations and systems for water supply and sanitary services, for control of water flow and for separation of solids and particulates from water and sewage
40
Treatment of waste water, storm water and industrial effluents; separation of solids and particulates from water and sewage
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