... pyrophyllite and vermiculite, sepiolite, attapulgite, rectorite, diatomite, barite, gypsum, alunite, graphite, fluorite, rock phosphate, kalium ore, pumice ... forged by special material with high utilization. Under the same grinding material and finish special size ... and noise.Model and technical data of gypsum powder production line:ModelHGM8021HGM9024HGM10027HGM10036Ring Diameter(mm)80090010001000Ring ...