PRIMÄR ALUMINIUM PRODUKTION
ALUMINUM ELEKTROLYSE
HOCHTEMPERATURFESTE WERKSTOFFE U. KERAMIKEN

BNZ Materials Inc.
M. Bridgett Company
Drache Umwelttechnik GmbH & Co. KG
NV Gouda Vuurvast
A.P Green Refractories
Harbison-Walker Refractories
Hodges Group
Hope Engineering Services
MINTEQ Intemational
Nat'l Refractories & Mineral Corp.
Saint Gobain Industrial Ceramics
Simonsen & Sons
Skamol Insulation
TGC Electrical Insulation,(Div. of The Gund Company)
Thermal Ceramics
TYK America, Inc.
Vesuvius Foundry Group
Vesuvius Hi Tech Ceramics