... dolomite, potassium feldspar, marble, talcum, gypsum, kaoline, medical stone, rock phosphate, manganese ore, iron ore, glass, ceram, ... powder is brought into the powder collector together with airflow. The powder comes out as end products ... the powder collector in cycling to make the machine work normally. The remained airflow comes out ... 8800 Xinyuan Brand Carbon Black Grinding Machine With Best Price