Application: 1. Good winding property, non-sag, applied for making incandescent lamp, coiled-coil or trispiral CFL filament, feast lamp and support. 2. Good winding property, non-sag, applied for making incandescent lamp, coiled-coil or trispiral CFL filament, feast lamp and support. 3. High recrystallization temperatures and non-sag, applied for making shock-resistance filament and halogen filament. 4. High recrystallization temperatures and non-sag, applied for making shock-resistance filament and halogen filament.