... ,WL20,WT20,WT40,WC20,WZ8,WP 3. Dimension: dia(1.0-10)*L L<1500mm 1. Product Information:1) Tungsten Electrodes Density ... tungsten,cerium tungsten,lanthanum tungsten,zirconium tungsten,yttrium3) Size: Dia(1.0-10mm)*L L<1500mm4) Product Condition: Black,Annealed,Ground and Polished5) Applications: TIG ... .8-2.2 < 0.20The restBlue WP< 0.20The restGreen WC20 CeO2 1.8-2.2< 0.20The restGray WZ8 ZrO2 ...