Vacuum metalized tungsten filament ke mofuta oa thepa e ka jeoang ea vacuum, e sebelisoang haholo indastering ea ho fafatsa ka holim'a li-tubes tsa litšoantšo, liipone, mehala ea mehala, lipolasetiki tse fapaneng, lintho tsa manyolo, likarolo tsa tšepe le mekhabiso e fapaneng. Joale ke eng...
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