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Black Surface Tungsten Rods 1 kg Per PriceBlack surface tungsten needle / rod Black tungsten rod refers to a classification of surface treatment, not a material type, During the wire drawing process, it is lubricated with graphite emulsion,
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Tig Welding Electrodes Wt20 3/32'' DiameterWT20 thorium tungsten electrode applicationModel: WT20 Thoriated Tungsten Electrode Composition: Tungsten matrix doped with 1.8%–2.2% thorium dioxide (ThO₂) total impurity content
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WP Pure Tungsten ElectrodesWP pure tungsten electrodesType: WP Pure Tungsten Electrode Material: ≥99.95% pure tungsten, no rare earth additives (no cerium, lanthanum, thorium) Tip color mark: Green tip Executive standard:
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