Use thorium tungsten electrode

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Tungsten is a gray steel colored metal , tungsten powder to restore the rule of law was gray , granular tungsten powder is dark gray , ultra- fine grained Kekai Tungsten & Molybdenum Technology molybdenium powder is black. High melting point of tungsten 3400 ℃. Large copper tungsten hardness, high density , high temperature strength. Tungsten is mainly used for the production of tungsten carbide and tungsten carbide -based iron . Tungsten, chromium , molybdenum, cobalt for the production of heat- resistant alloy cutting tools, metal surface hardening material , gas turbine blades . Tungsten, tantalum , niobium , molybdenum, refractory alloy composition . Tungsten and molybdenum alloys copper -silver alloy for electrical contact materials. High density tungsten nickel-copper alloy for radiation protection shield . Tungsten wire, tungsten rod , tungsten sheet for the production of light bulbs , components and arc welding electrode tube . Tungsten and its alloys are widely used in electronics , electric light , space and weapons ( rocket nozzles , armor-piercing core ) . Alloy tool steel, high speed tool steel , forging die steel , structural steel, spring steel , heat-resistant steel and magnets are added tungsten.