Wolfram Ores concentrates (primary raw .
Wolfram – Ores concentrates (primary raw materials) The raw material supply for the smelting plant consists of four components, which allows WOLFRAM to proactively react to the volatility in the raw materials markets and mitigate any supply risks: Our own mine in Mittersill; Recycled Material; Purchased tungsten concentrates from mines throughout the world; and in order to level out peaks ...