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