2013年8月21日星期三

Tungsten is a scarce and non-renewable resources

China Tungsten wire Industry Association president Zhou Juqiu 10, 2011 in Beijing, said that at present, China tungsten products import and export trade structure has changed in the past with the initial raw material export-oriented passive situation, realize the optimization and upgrading of product structure. Zhou Juqiu said that in 2004 China Import and Export of tungsten product volume and variety of changes, marking the country's tungsten industry product structure has been optimized, and has basically changed the situation of the export of primary products, industrial enterprises began to focus on the domestic tungsten extend the industrial chain, focusing on increasing product added values.Sina search coalition forces the heart of the 11th Chinese music chartassive music free download 2004, China AwardCustoms departments to provide data show that last year the first 10 months of tungsten products export trade amounted to $ 320 million, an increase of 45% over last year; trade surplus up 41% over the previous year. Increase in imported products mainly tungsten and other primary products, an increase of 170%; while the tungsten metal and metal products and other processed products volume fell 32.7%. China Tungsten Industry Association, the official said, after the Chinese Foreign basically concentrates export, import high-grade tungsten metallurgical products, and later as the domestic production of tungsten metallurgy technology and the development of intermediate products for export instead of tungsten oxide, ammonium paratungstate and tungsten iron-based, while foreign to Chinese intermediate products as raw materials, the production of high value-added tungsten products.Tungsten is a scarce and non-renewable resources, widely used in mobile phones, integrated circuits and micro-computer and other fields. MLR provides data show that China now has 269 mines have been identified tungsten tungsten ore reserves of 1.244 million tons, accounting for 45% of world tungsten reserves, ranking first in the world.

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