... chemical constituents of tungsten alloy rod, or upon request of electrode for annealing. Place of Origin: Henan China (Mainland)Brand Name: CPCModel ... chemical constituents of tungsten alloy rod, or upon request of electrode for annealing.Welding electrodesdia1.0x175/150mm, dia1.6x175/150mm, dia2.4x175 ... ,175Chemical CompositionWTh,WCe,WLa,WP,WZ,WY WT20 thoriated tungsten electrode