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Comprehensive
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braze2 to solder (metal objects) together using a material with a high melting point, such as copper or zinc.
tantalum a chemical element that has seventy-three protons in each nucleus and that occurs, usu. together with niobium, as a hard, corrosion-resistant gray solid metal with a very high melting point, used esp. in various instruments and equipment. (symbol: Ta)
tungsten a chemical element that has seventy-four protons in each nucleus and that occurs in pure form as a gray metal solid with an extremely high melting point, used esp. in heat-resistant alloys and to make filaments for high-powered electric lamps; wolfram. (symbol: W)