The utility model comprises a double helix filament body and filament pins integrally arranged on both ends of the filament body, the filament pins are respectively straight line filament pins.
本实用新型包括双螺旋灯丝主体和连体设置在主体两端的丝脚，所述两端的丝脚分别为直线型丝脚。
The utility model comprises a double helix filament body and filament pins integrally arranged on both ends of the filament body, the filament pins are respectively straight line filament pins.
本实用新型包括双螺旋灯丝主体和连体设置在主体两端的丝脚，所述两端的丝脚分别为直线型丝脚。
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