... Our compay, Zhenghzou Huade Mechanical Equipment Co.,Ltd., is specialized in producing various of grinding mill, such as raymond ... metallic materials under mohs hardness of 6.5 like kaolin, lithophone, carbon black, gypsum, talc, lime, feldspar, coal, shell red mud ... 300-30Adjustable at randomMax hardness of materials(mohs, hardness level)Under6.5Under6.5Under6.5Moisture of materials<6%<6%<6%Grinding ...