Tungsten heating coil:
1. Application:
HW91:Applied for making filament, shock-resistance filament and other high-terperature- resistance devices.
HW71: Applied for making auto lamp filament and other anti-shock devices.
HW61: Applied for making coiled-coil filament.
HW31:Applied for making coiled-coil or trispiral CFL filament, incandescent filament and surpport.Applied for making stranded tungsten wire,tungsten heater element and other no special temperature required devices.
HW11: Applied for making electrode and lead.
2.Shape: custom-made
3.Surface: polished
