Material : Tungsten round bar, Tungsten square bar Chemical analysis : W 99.95%min Fe 0.002%max Other impurity total : 0.05%max Size : Tungsten round bar, Dia 15-18mm x Length 500 mm Tungsten square bar (12-15)mm x (12-15)mm x 500 mm Application : for manufacturing non-sag tungsten wire, stranded tungsten wire,etc. also for production of electrode and contact point material, and for special steel accretion and alloy material.