WT20 welding electrode, various chemical constituents of tungsten alloy rod, or upon request of electrode for annealing. WT20 welding electrodedia1.0x175/150mm, dia1.6x175/150mm ... ,WL15,WL20,WY20ApplicationTIG WELDINGShaperodMaterialWTh,WCe,WLa,WP,WZ,WYDimensionsDIAM1.0,1.5,1.6,2.0,2.4,3.0,3.2 ...