Another important use of limestone is the production of hydrofluoric acid. In the aluminum industry, the hydrofluoric acid is used to produce aluminum fluoride, synthetic cryolite, sodium fluoride and magnesium fluoride. In aviation and aerospace industry, hydrofluoric acid is mainly used to produce jet liquid propellant and missile jet fuel propellant. In the atomic energy industry, hydrofluoric acid is mainly used to manufacture UF4 and so on.

Fluorite powder used for chemical, rubber, ceramics, building, building materials and other fields, also for high-tech industries, such as military cables, fiber transmission, as well as high-precision smelting industry.

The mill is replacement equipment of the traditional milling machine. Wide usage, simple operation, easy maintenance, stable performance, high cost-effective, 30% -40% higher output than the traditional grinding Mill, is a kind of economical and practical milling equipment.