tungsten filament
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Spiral tungsten filament is applied in the vacuum metallizing.
1.Purity:99.95% Min.
2.Long life
3.Super thermal efficiency
Grade :WaL/W1(+AL)
Diameter:φ0.4-1.3
Number of strands:1-10(strands)
Difference between 2 feet(mm):Big heater element:±2mm ; Small heater element: ±1mm
Inside diameter tolerance : ±0.3mm