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    1. The Gold SONIC CONCENTRATOR or "Live Sluice", a two tray, heavy duty high oscillation gravity concentrator for hardrock and alluvial precious metals eaxtraction and concentration. These process from 50 to 150 Tons per hour and can be placed in series for higher capacity operations. 2. Portable HELICOID CONCENTRATORS called the Goldland "Blasters" which continuous feed and upgrade China in Africa: Tanzania grants Chinese firms licences to,Small-scale miners in Tanzania produce around 20 tons of gold a year but 90 percent is illegally exported, according to a parliamentary report. The country’s President John Magufuli said revenue collection from mining had increased over the past two years, after his government tightened controls.

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