... lamp filament) is widely used in incandescent lamp,energy-saving lamp, fluorescent lamp Tungsten filament(Energy-Saving Lamp,lamp filament) , made by qualifed ... tungsten wire, are widely used in general incandescent lamp, energy-saving lamp, fluorescent lamp, auto lamp, halogen lamp and other ... Piece weight: ±3%mg3) Cold resistance: ±3% ohm Tungsten filament,Energy-Saving Lamp,lamp filament