grinding of the coal for laboratory purposes can modify the coal signifi cantly Radd to be intermediate since the sieve classification is intermediate e It should be a 065cm coal fragment surface area 25 cm2 is reduced to 25 micron... As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.
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