Mineral&Methods

Within all the metal, only gold poured in human economic life and it has such a significant influence to the human society. In the thousands of years of human civilization history, through the years, the up and downs, honor or disgrace, lift uncertain, the social status of gold have never changed and it still the wealth that puersued by all the people.

Copper is one of the earliest found metals in the human history, its color is amaranth, relative density is 8.89, melting point is 1083°C. Copper and its alloy are good at electric conduction and heat conduction.

In the development of human society, the invention of the steel plays a very big role. Even now, the production of steel is still a very important figure to measure one country's industrial development level. Before smelting the steel, the technology to improve the grade of Iron ore to match the steel industry's demand is becoming more and more important for every country.

The Mn element is very important in the metallurgy and other fields. 90% of iit is used in the steel industry for improving the hardness, strength, abrasive resistance, toughness and hardenability of the steel. The rest Mn element is used for making welding rod, glass, ceramic, medicine, agriculture and environment protection, etc.