Wolfram is used in the production of hard materials.
Вольфрам используется в производстве твердых материалов.
Definitions
A chemical element with the symbol W and atomic number 74, also known as tungsten, used in light bulb filaments and other high-temperature applications.
The filament in the light bulb is made of wolfram due to its high melting point.
A mineral, chiefly wolframite, that is an important ore of tungsten.
The mine produced tons of wolfram to be refined into pure metal.