Brand:W3101 W3102 W34 W1 W2
Content:W3 W34 W2:W≥99.929%
Character and usage:
       W3101:twist wire;it has good character and endurance.Second crystal temperature
               ≥1950℃,mainly used as filament wire in halogen filament,high temperature
               Colour filament,twist filament,white filament and fluorescence filament.
       W3102:It has good character in roll and high temperature.Second crystal temperature
               ≥1850℃,mainly used in white filament wire,vaccum tube heating wire.
       W34:used in twist wire
       W1 W2:Used as frame of vaccum tube,heating elements.  
Super thin white tungsten wire,specs:￠3-14μm,usage:electronic watch,electronic computer,mini-bulb and other precision equipment manufacture.
                   Brad and tungsten content
Brand           WAL1         WAL2
Tungsten content ≥99.95% ≥99.95%
                      Diameter
Brand            WAL1         WAL2
Black wire        min            min       12μm     10μm
Diameter         max            max      2000μm   300μm
               Chemical  content(%)
W             k        Fe            Mo        Others
≥99.95  0.004-0.010  ≤0.0020  ≤0.0030    ≤0.0010