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Date: 2013-04-15 16:16:12Carbides Superhard materials Palm Tungsten Tungsten Ammonium paratungstate Cemented carbide Tungstate Titanium carbide Chemistry Matter Tungsten compounds | Mineral Industry Surveys For information, contact: Kim B. Shedd, Tungsten Commodity Specialist U.S. Geological Survey 989 National Center Reston, VA 20192Add to Reading ListSource URL: minerals.usgs.govDownload Document from Source WebsiteFile Size: 194,87 KBShare Document on Facebook |