1.Specifications

Tungsten Filament

Diamater: min0.25mm
purity:99.95% 
density:19.35g/cm3 
grade : WAL 1, WAL 2,WAL 3 ,W1 ,W2

2. Chemical element  

Grade	W	Fe	Ni/Si	Al/Ca/Mg	Other impurity, each
W1	≥99.95	≤0.005	≤0.003	≤0.002	≤0.001
W2	≥99.95	≤0.005	≤0.003	≤0.002	≤0.001

 3.Application:

1.Tungsten heater element and other heater components in semiconductor .

2.High temperature lamp and filament ,stock - resistance filament ,double helix filament etc.

3.Electric incandescent lamp filament , fluorescent light filament ,etc

state : in coil or straight black wire and white wire .

Package details:

 

First, packaging with moisture-proof paper

 

Second, packaging with kraft paper

 

Third, packaging with foam plastics in all side of plywood case.
Finally packing products in plywood case