Category: Boron Carbide Showing 1 - 8 of 8 ART - Advanced Refractory Technologies Inc. Buffalo Höganäs Germany GmbH Goslar Luoyang Runchang Refractories Co. Ltd. Luoyang, Henan Mitsui & Co. Deutschland GmbH München Sintec Keramik GmbH Schongau Wacker-Chemie GmbH Kempten Washington Mills Electro Minerals Corporation Niagara Falls Washington Mills Electro Minerals Ltd. Manchester