2% Thoriated Tungsten Electrode	2% Ceriated Tungsten Electrode	1% Lanthanated Tungsten Electrode
1.5% Lanthanated Tungsten Electrode	2%Lanthanated Tungsten Electrode	0.8%zirconiated Tungsten Electrode
Pure Tungsten Electrode	2% Yttrium Tungsten Electrode	Rare Earth Tungsten Electrode