... lines, frame, gas lamp electrodes, high-power incandescent filament, the filament in electronic tube and cathode in launch tube, ... wire of high color lamp, wire of shockproof lamp and double-spiral wireManufacturing wire of incandescent lamp, cathode of transmitting tube, ... heating cord of electron tube, wire of incandescent lamp, and reaming tungsten wireManufacturing folding heating cord of ...