In the vast field of materials science, tungsten-nickel-copper alloy (W-Ni-Cu) shines like a brilliant star, exuding unique charm. As a high-performance material with tungsten as the matrix and alloying elements such as nickel and copper, it is known as the "versatile player" in the industrial field, playing an indispensable role in many key industries. From the high-tech aerospace sector to the manufacturing of daily electronic devices, its presence is ubiquitous. Let us now delve into the wonderful world of tungsten-nickel-copper alloy, exploring its composition, unique properties, and extensive applications. 

Tungsten wire exhibits excellent thermal stability in heating glass equipment due to its ultra-high melting point, low vapor pressure, excellent high temperature strength, good creep resistance (especially non-drooping tungsten wire) and low thermal expansion coefficient, making it an ideal choice for high temperature heating elements.

Tungsten-nickel-iron alloy is an important tungsten-based high-density alloy. By definition, it is an alloy composed of adding nickel and iron to metallic tungsten, with the nickel-iron ratio typically maintained at 7:3 or 1:1. With excellent comprehensive properties, this type of alloy is widely applied and has become the main category of tungsten-based alloys with large usage at present. 

Tungsten wire has the characteristics of high melting point, good mechanical strength, corrosion resistance and low thermal expansion coefficient, and has extensive and important applications in glass industry.