Critical raw materials revisited | MININGMar 9, 2012 . Access to raw materials at competitive prices has become essential to . time required for production and utilization to adapt to fluctuations in.what are the raw materials required for mining production,How iron is made - material, manufacture, making, history, used .Evidence of what is believed to be the first example of iron mining and . Because iron was a far superior material for the manufacture of weapons and tools . took out a patent for the melting of material for the production of steel springs to be . The raw materials used to produce pig iron in a blast furnace are iron ore, coke,.
what are the raw materials required for mining production