It's an electrode tungsten needle. Great. Wc-wt-ray pole, beijing-based material plant

Normal electrodesr

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Many clients have no idea what the color of the tungsten needle is

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Grey tungsten needles when welded; (铈钨wc20)r

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Redhead tungsten needles when welding stainless steel; (钍钨wt20)r

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Welded aluminium with green head tungsten needles. (close tungsten wp20)r

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The above price was a single price, 1. 6-4. 0 for 10 boxes and 5. 0 and 6. 0 for five boxes. I don't know

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Physical performance: r

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Density: 19. 3g/cm3r

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Melting point (liquid): 3422° cr

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Transmission rate: 30% iacs minr

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Hardness: 69hra min