Welding electrodes, various chemical constituents of tungsten alloy rod, or upon request of electrode for annealing. Place of Origin: Henan China (Mainland ... 30 daysSpecificationsWelding electrodes, various chemical constituents of tungsten alloy rod, or upon request of electrode for annealing.Welding electrodesdia1.0x175/150mm, dia1 ... CompositionWTh,WCe,WLa,WP,WZ,WY WT20 thoriated tungsten electrode