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Shanghai Ding Bo heavy industry machinery co., LTD. Has the abundant technical force and strong production capacity, the company's products in mining, roads, Bridges, housing construction and other industries widely used, crusher, grinding machine, feeding machine, vibrating screen, sand washer, belt conveyor equipment and series of products, all passed the ISO9001:2000 standard quality certification.

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Best switcheroo ever: Scientists could extract gold with ...

Gold mining today is far from the charming, if soggy, practice of standing in a river and trying to sift out gold nuggets. Today, miners sift out gold from a river of cyanide, basically: They mine ...

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