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Chapter 673: Loans and minerals.
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... manganese ore, with a rating of 56. This one got reaches the level of rich ore, wolframite. Wolframite is mainly composed of tungsten and manganese, of which manganese occupies the majority.
Needless to say, tungsten is nature's hardest metal. When smelting cemented carbide in factories, a large amount of metallic tungsten is required. Fortunately, tungsten metal can be purchased domestically and there is no shortage at present.
Manganese is a transition metal, and it is ...
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