... , calcite, barite, dolomite, potassium feldspar, marble, talcum, gypsum, kaoline, medical stone, rock phosphate, manganese ore, iron ore, glass, ceram, active carbon ... blower and the rough powder will be back to the grinding room for regrinding. The qualified powder is brought into the ... .0-5.272.57700×7200×8800 Xinyuan Brand Carbon Black Grinding Machine With Best Price