Home > Term: Collum washer
Collum washer
Mineral jig with a quick down stroke and retarded return of its plunger.
- Del af tale: noun
- Branche/domæne: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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Ophavsmand
- ed.young
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(V.I.P) 21084 points - 100% positive feedback
(Milwaukee, United States)
