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Traditional extracting process of sludge from river

Traditional extracting process of sludge from river

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The cultivation of high quality juvenile Chinese mitten crabs

The cultivation of high quality juvenile Chinese mitten crabs

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electrolytic gold recovery process from old cpu computer. Today would like to propose ways Electrolytic gold recovery and separation process. It's an easy way. I separate the gold plated pins from circuit boards and electronics, then use Gold stripping to separate the gold from the gold plated pins into the solution. I use a DC power supply of 50 amps, 60 volts. Gold will stick to the negative electrode. And there may be gold sediment falling on the ground We have to collect this gold as well. S

electrolytic gold recovery process from old cpu computer. Today wo…

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