Locations throughout Germany The enterprise thus founded was a manufacturer of non-ferrous metals with a large portfolio of semi-finished products and alloys. Initially the focus was on copper and brass, but later aluminum, stainless steel and nickel alloys gained importance. The company's headquarters were in Frankfurt am Main for many years, while its production locations included Altena and Werdohl, Duisburg, Cologne, Nuremburg and Frankfurt am Main. The founding of VDM was a prelimina