roller crusher oil shale
DoubleRoll Crushers. DoubleRoll Crushersprovide a 4:1 reduction ratio. They are typically used as a secondary or tertiary crusher for materials such as ROM coal with refuse, limestone, gypsum, trona,shale, bauxite,oil shale, clean coal, coke, salt, quicklime, burnt lime, glass, kaolin, brick,shaleand …
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