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milling galena milling method in slovakia

Apr 10 2020 · In the case of the overhand method sand fill is used as backfill typically without the addition of cement For the underhand method cement is typically added to the sand fill in order to provide the required strength to work underneath the placed backfill Ore is hauled to either the Galena or 3 shafts via tracked locomotives and rail cars... As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

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