Type of Electrode Modele Added Imprrity Impurity Quantity Other Impurities % Colors Sign Surface Brand name Standard ThoriatedTungsten electrode WT10 ThO2 0.9-1.2 0.20 Yellow Polish Huarui ISO6848 WT20 ThO2 1.8-2.2 0.20 Red WT30 ThO2 2.8-3.2 0.20 Purple WT40 ThO2 3.8-4.2 0.20 Orange. Packing: 10pc/plastic casing, length:150mm or 175mm,1000pcs/box, others specification can according to customer s requirement.
