tungsten-mobile

Tungsten mobile refers to mobile, whose parts are maily made of tungsten. Tungsten is a high performance material. Pure tungsten has high melting temperature, high density, low vapor pressure, low thermal expansion combined with good thermal conductivity, sufficient electrical resistance, high modulus of elasticity. 

Tungsten mobile is higly appreciated for its good property. And some people would pay attention to mobiles made of tungsten parts.