... WZ8,WP 3. Dimension: dia(1.0-10)*L L<1500mm 1. Product Information:1) Tungsten Electrodes Density: >19.1g ... tungsten,cerium tungsten,lanthanum tungsten,zirconium tungsten,yttrium3) Size: Dia(1.0-10mm)*L L<1500mm4) Product Condition: Black ... 20The restBlack WL-15 LA2O3 1.3-1.7< 0.20The restGold WL-20 LA2O3 1.8-2.2< 0. ... 0.20The restBlue WP< 0.20The restGreen WC20 CeO2 1.8-2.2< 0.20The restGray WZ8 ZrO2 0 ...