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Coal Sieve Shaker In Indonesia

Of coal dust found in mines during the 1920s and the amount of rock dust required to inert that size of coal in full-scale experimental mine tests nagy, 1981.The term mine size coal was adopted in about 1925 and refers to coal dust, all of which passes a u.20 sieve 850 m and contains 20 minus 200-mesh 75 m.

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