OCR Text |
Show a conservative estimate places the savings In this way alone at $240,-000,000 $240,-000,000 a year. It In also a labor-saving labor-saving factor In the steel Industry. Only about 6,000 tons of tunpsten are used a year. The supply Is obtained ob-tained from China, which haa a monopoly on the metal. , Tungsten's Great Value A metal which until a few years ago was little known outside the chemical laboratory bas become. In Just a few years, Mr. Economy's favorite son. Tbe annual savings brought about through the use of tungsten are almost beyond estimate. Employed In the manufacture of light bulbs, the metal requires less current In supplying more candle-power candle-power than the old carbon lamp, and |