Tungsten may be unfamiliar to you, but when it comes to tungsten wires, tungsten is mainly used in incandescent lamps, halogen tungsten lamps and other electric light sources.

Tungsten is made from tungsten, a nonferrous metal that gives you a heavy feeling when held in your hand. Tungsten has a density of 20 grams per cubic centimeter, very close to gold, which is why some people use tungsten to forge gold.

Tungsten metal is a very fragile, only when it is high purity has plasticity, there are a lot of tensile strength, but these are not the main characteristics of the metal, to melt a tungsten requires high temperature, the melting point of tungsten in 3420 degrees Celsius, which is why made with the metal tungsten filament incandescent light.