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2018-12-10 · TYPES OF CRUSHER 4.5 Impact Crushers 4.5.2 Double Roller Hammer Crusher 4.5.2 Double Roller Hammer Crusher 'Holderbank' - Cement Course 2000 Holderbank Management & Consulting, 2000 6/23/2001 - 4:39:49 PM Page 66 Query: Material is fed, by gravity, into the center of a double rotor machine and is hit by the hammers.
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