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The Nui Phao mine is a large open pit mine located in the northern part of Vietnam in Thái Nguyên Province. Nui Phao represents one of the largest tungsten reserves in Vietnam having estimated reserves of 55.4 million tonnes of ore grading 0.21% tungsten. [2]
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Tungsten is mainly used in the production of hard materials based on tungsten carbide (WC), one of the hardest carbides. WC is an efficient electrical conductor , but W 2 C is less so. WC is used to make wear-resistant abrasives , and "carbide" cutting tools such as knives, drills, circular saws , dies , milling and turning tools used by the ...
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The foremost producer of tungsten is China, with an estimated 71,000 metric tons produced; as such world tungsten supply is dominated by China and Chinese exports. The next highest producers are Vietnam, Russia, Bolivia, and Rwanda with an estimated 4,800, 2,300, 1,400, and 1,100 respectively.
The highest production growth rates were recorded in producing paper products (32 percent per year) and food processing (42 percent per year). Both sectors had declined in production during the Second Five-Year Plan. Production of processed sugar increased from 271,000 tons in 1981 to 434,000 tons in 1985, almost ten times the 1975 production ...
Tin production (tonnes) by country ; Country (or area) Production World 310,000 China * 85,000 Indonesia * 80,000 Myanmar * 54,000 Peru * 18,500 Bolivia 17,000
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