Molybdenum Electrode TZM Molybdenum Rod Grade: Pure Molybdenum and TZM Molybdenum alloy. Size: dia (2.0mm min) x L (3000mm max.) Surface: Sintering surface, Forged surface, Ground surface Condition: Annealed Application: Glass melting electrodes, Hook of the lamp, core of the lamp filament, Grid for the vacuum tube, leader, supporter of the lamp. heater for the high temperature furnace. electrode, making strip, tools for electric vacuum instruments and other tools of the lamp