The Mid-Autumn Festival, also known as Moon Festival, Moonlight Birthday, Moon Eve, Autumn Festival, Mid-Autumn Festival, Moon Worship Festival, Moon Niang Festival, Reunion Festival, etc., is a traditional Chinese folk festival.
Industrial uses of fluorsparHalf of the world’s fluorspar production is used to make hydrofluoric acid, and it has been developed to make cryolite and used in the aluminum industry. Fluorspar is also used to make coolant(Freon) in refrigerators and air conditioners, and in 1986, the first generation
The main component of bauxite is aluminum oxide (Al2O3), which is an mineral containing impurities of hydrated aluminum oxide. It is white or off-white, brownish yellow or light red due to iron content. The density of bauxite is 3.9~4g/cm3, hardness 1~3, opaque, brittle and extremely difficult to me