Tungsten and Tungsten Wire-Conflict-Free Mineral Procurement Policy.

Tungsten is one of the so-called refractory metals, along with molybdenum, niobium, rhenium, and tantalum. These materials are known primarily for their high melting points.
Tungsten is one of the so-called refractory metals, along with molybdenum, niobium, rhenium, and tantalum. These materials are known primarily for their high melting points.