... mining, metallurgy, chemical industry, steel, building materials, coal industry and so on, and has produced great economic and social benefits. Mainly used in ... hardeness is below 9.3, humidity is 6% and and the final product size can be adjusted as requied ... zircon sand, talc, granite, potash feldspar, marble, barites, ceramics, glass and other grinding materials of more than 1000 kinds. Bacause the ...