Geotechnical construction products, namely, foundation support devices made of metal for supporting structural components in tension and compression, seepage control devices made of metal for routing water to specific positions within excavation support, tension bolt adapters made of metal for placing foundation support elements in tension, [ horizontal helical drains made of metal for relieving trapped hydrostatic pressure behind retaining walls and in slope stabilization applications that a...

Geotechnical construction products, namely, foundation support devices made of metal for supporting structural components in tension and compression, seepage control devices made of metal for routing water to specific positions within excavation support, tension bolt adapters made of metal for placing foundation support elements in tension, horizontal helical drains made of metal for relieving trapped hydrostatic pressure behind retaining walls and in slope stabilization applications that are...