mercury mica roller mill
HGM Ring Roller Grinding Mill Application Materials. HGM Ring Roller Grinding Mill is the equipment spelling in producing fine and ultrafine powder of nonInflammable, nonexplosive and brittle materials with Moh's hardness under 6. Such as calcite, chalk, limestone, dolomite, kaolin, bentonite, talc, mica, magnesite, illite, pyrophyllite and ...