ULTRATREX AMPHIBIOUS DREDGER (SAND MINING) | Video .ULTRATREX AMPHIBIOUS DREDGER (SAND MINING) . It is proven to work effectively on river sand mining, ponds clearing & shallow water dredging . trade show for construction and mining equipment and, with its 10th edition, the event.river sand mining equipment,Sandmining is destroying Asia's rivers | The Third PoleThe Third PoleMay 5, 2017 . Banned in 1991, sand mining from riverbeds continues illegally in Nepal . Mining in Poonch river using heavy machinery is destroying river.
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