... Medium Speed Trapezium mill has been widely used in electric grinding, mining, metallurgy, chemical industry, steel, building materials, ... the rang of 80-425meshes(even till 1000meshes), such as cement clinker (born), quartz, feldspar, calcite, dolomite, graphite, ... potash feldspar, marble, barites, ceramics, glass and other grinding materials of more than 1000 kinds. Bacause the machine takes ...