已经有次观看 wencong在2013-07-08发布
简介：Tungsten routine applications in the steel industry, as an essential element of cemented carbide, tungsten and tungsten ore market and development has been a concern. Currently, tungsten and tungsten products appeared in the new fields of application - the new energy field, tungsten and tungsten products in the future has great potential for development, the price of tungsten and tungsten ore prices in the future will also appear favorable situation.
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