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copper crusher blog

Feb 03 2017 · A single copper indent crusher is placed in the firing chamber of a firearm and the trigger is pulled causing the firing pin to strike and leave an indent mark on the rim area of the copper crusher The copper crusher is then removed and the indentation measured Fig 6 The indentation must measure 0014 inch read to the nearest 00005 inch ... 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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