... diatomite, barite, gypsum, alunite, graphite, fluorite mining equipment ultrafine grinding machinery mining equipement used in calcite, diatomite, barite, gypsum, alunite, ... under negative pressure.technicalModel8021Power50kwFeeding size1-5mmProduct fineness500-8000meshDealing capacity800kgYield95% ultrafine grinding machinery mining equipement used in calcite, diatomite, barite, gypsum, alunite ...