... mainly applied in metallurgy, building materials, chemicals, mining minerals such as grinding materials processing, grinding quartz, feldspar, ... , granite, garnet, iron oxide yellow, fly ash, bituminous coal, coke,lignite, magnesite, chrome oxide green, gold, red mud, ... clay, kaolin, coke, coal gangue, porcelain clay, kyanite, fluorspar, bentonite, medical stone, ...