... Length :50-1500mm Application:making filament,setting rod at H.T.etc tungsten RodsHigh Purity :tungsten 99.96 ... filament,setting rod at H.T.etcType &Application TypeapplicationWAl1Applied for making filament,cathodes,setting rod at Ht, ... electrode,lead,support,typing ,needle ,etc.W1/2/3/4Applied for ...