... (lamp filament) can be used in ultraviolet lamp,VM lamp, is uniformity in pitch,shape,color,luster and piece Tungsten filament(lamp ... widely used in ultraviolet lamp(VM Lamp),general incandescent lamp, energy-saving lamp, fluorescent lamp, auto lamp, halogen lamp and other special lamp.Based on advanced ... 3%mg3) Cold resistance: ±3% ohm Tungsten filament,ultraviolet lamp filament,lamp filament