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<span style="background-color: white;"><span style="font-family: lucida grande, tahoma, verdana, arial, sans-serif;"><span style="font-size: 14px; line-height: 21px;">The biggest use of tungsten, also not manufacturing filament, but manufacturing tungsten steel. Each year, 90% of the world's </span><a href="http://www.china-tungsten-molybdenum.com/key-tungsten-filaments-238/" style="font-size: 14px; line-height: 21px;">Kekai tungsten filaments</a><span style="font-size: 14px; line-height: 21px;"> is used in the manufacture of </span><a href="http://www.china-tungsten-molybdenum.com/key-tungsten-ingot-278/" style="font-size: 14px; line-height: 21px;">tungsten ingot</a><span style="font-size: 14px; line-height: 21px;"> steel. In ancient China, often have so-called "very sharp" nod, said "water margin" inside the hair on the "green beast" yang2 zhi4 one nod to the blade of a blow, hair was cut in half. These legends are exaggerated, however, there are some knife is very sharp. According to the modern analysis with chemical method. Originally, containing tungsten in the steel knife! Now, people use the <a href="http://www.china-tungsten-molybdenum.com/key-tungsten-electrode-274/">tungsten electrode </a>and iron together, refined into a tungsten steel. Tungsten steel containing tungsten by 9-17%.</span></span></span><span style="background-color: white; font-family: 'lucida grande', tahoma, verdana, arial, sans-serif; font-size: 14px; line-height: 21px;"> </span>
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