... Our company design and produce Powder Ball Press Machinery for using waste powder, ore powder, dry coal Powder.. as material to make ... pressing machinery, rotary drying machinery, mining machine. Our factory coving over 55 000m2 with modern building. We have ... , Powder Rotary Drying Plant, Rotary Kiln, etc.2. Mining machinery: Crusher, ball mill, flotation machine, etc. factory price of Powder Ball ...