Manganese is a kind of ferroalloy used to manufacture special quality steel.Smelting or iron also require manganese for removing the exides during the smelting or iron .manganese is generally found in tropical and sub-tropical countries with high rainfall while manganese nodules or polymetallic modules found is sea bottom or in continental shelves.
Manganese is used for special quality steel marking, makes steel anticrrosive hard and clean, increases toughness strength and durability,to resist oxidation in blast furnaces,used to produce alloys, with copper, Bronze and Nickel, etc. 
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