... 50-1500mm Application:making filament,setting rod at H.T.etc tungsten RodsHigh Purity :tungsten 99.96% Dia ... 50-1500mmApplication:making filament,setting rod at H.T.etcType &Application TypeapplicationWAl1Applied for making filament,cathodes,setting ... ,lead,support,typing ,needle ,etc.W1/2/3/4Applied for making electrode,lead and heater componentsNote: ... 0.001%≤0.002%≤0.001%W1/2/3/4≥99.95%≤0.001%≤0.002%≤0. ...