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Coal Spirals Supplier

20181024krebs coal spirals are used to make densitybased separations on nominal 14m x 100m 1mm x 09mm size coalhese devices consist of a 0meter helix with between 2 and 3 turns, mounted on a 160mm center columno provide greater capacity per volume, either two duplex or three triplex helices can be mounted on one center column.