Mueller, Karl von frey50

Vibrating gold concentrators: Wet or dry. Print Karl von Mueller - Segundo, CO Exanimo 1980 - 47 p. Paper

Introduction by Paul Tainter.

How to build and operate one of the best gold recovery machines. Cleaner and much faster than an air-blown concentrator with much higher recovery. Complete construction plans and operating instructions by an expert with years of experience.

0893166170


Gold recovery.

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