A wastewater treatment and dispersal system wherein wastewater will stand until it has a BOD of less than about 125 mg/l. The dispersal field may comprise inner and outer conduits, an inner conduit and a permeable outer cover, or a trough and an enclosure.

 
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< Component for spatial grid supporting systems comprising filler material especially for retaining walls or noise-abatement walls, and corresponding structure

< Truss shoe for a mine roof and method

> Boat lift

> Platform structure
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