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Nufacturers Roll Crusher Oil Shale

Shale, was a mineral with a larger quantity of earthy matter than coal, but the em-thy matter in, this substance was incompatable with its being a shale.Carbonaceous matter was the base of this mineral, and not clay.Frankland could discover no bitumen in it, but its gas pro- ducing powers were much greater than those of bituminous coal.

We are a mining equipment production and sales company, with three production bases and four research institutes, more than 600 production equipment, precision production, and service globally.

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