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Ball mill - Wikipedia,A ball mill is a type of grinder used to grind, blend and sometimes for mixing of materials for use in mineral dressing processes, ... The axis of the shell may be either horizontal or at a small angle to the horizontal. It is partially filled .... Lynch, A.; Rowland C (2005). The history of grinding. SME. ISBN 0-87335-238-6 . ^ US Army...

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small business gold mining ball crusher