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Tungsten
Molybdenum
Tantalum
Niobium
Indium
Product  
 
 

Type&Application
 Type  Application
 
HW91HW71HW61
  Applied for making filament,cathodes,setting rod at H.t,electrode etc
 
HW31 HW4 HW11
  Applied for making lead,support,typing needle
 
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