Alta, Finnmark
Eidsvoll Verk, Akershus
Fjellhamar, Akershus
Manufacturing and trading of high tension insulators of porcelain,composite resin and glass. Manufacturing of pressbodies of porcelain, low tension. Ceramic welding backing.
Fredrikstad, Oestfold
Granvin, Hordaland
Larvik, Vestfold
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