Type | 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 |