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high purity polished tungsten wire tungsten filament for LED
For the tungsten wire, following is the normal tungsten wire dimension form.
| item | surface | diameter/mm | purity | density(g/cm³) | producing methord | |
| Dia | tolerance | |||||
| tungsten wire | bright | Ø0.05-1 | ±0.1 | ≥99.95% | ≥19.2 | swaging |
| Ø1-3 | ±0.2 | ≥99.95% | ≥19.2 | |||
| black | Ø0.05-1 | ±0.1 | ≥99.95% | ≥19.2 | ||
| Ø1-3 | ±0.2 | ≥99.95% | ≥19.2 | |||