... refractory materials, fertilizer, black and non-ferrous mineral processing as well as glass, ceramics and other manufacturing industry, dry or wet ... and transmission part (reducer, small driving gear, motor, electronic control). The hollow shaft using steel, lined with removable rotary gear ... 90102000Φ3200×4500≤250.047-0.46518800According to theprocess conditions137000 High-efficiency sand Ball Mill