... LHM: Our superfine ball mill production line can be used for producing: (1) Soft materials: calcite, marble, limestone, kaoline, ... materials, etc.(3) High purity materials: quartz, feldspar, α-alumina, glass fine bead, etc.(4) Metal powders: zinc powder, aluminum powder, ... 5. Different lining boards and grinding mediums are available for milling different materials, so as to guarantee the purity ...