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how to build a gold dredger

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how to build a gold dredger

General Materials Needed 1. Outline a frame andbuildit.. To sift rapidly through large amounts of gravel, you have tobuildapowered dredge. 2.Constructa sluice box which has to be mounted on the frame.. You should be familiar with soldering tobuilda sluice... 3. Install the mechanical ...

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