HARD GREY METAL Crossword Clue
HARD GREY METAL Crossword Clue
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Crossword Puzzle Infos
The term 'hard grey metal' is a reference to TUNGSTEN, an element with the atomic number 74 and symbol W. TUNGSTEN is a hard, grey metal that has the highest melting point of any element and is used in many industrial applications. It is also used in light bulb filaments, X-ray tubes, and electrodes.