أشغال صيانة، مقاولون

VOITH HYDRO SARPSBORG AS

LEIF GRIMSRUD AS

GRUNNSIKRING AS

AS NOREMCO CONSTRUCTION

DR TECHN KRISTOFFER APELAND AS

KRISTIAN OLIMB AS

H A JOHANNESSEN AS

EGIL PEDERSEN AS

NILS KRISTOFFERSEN AS

TIKKURILA NORGE AS

INDUSTRILAKKERING AS

BAUER & BECH AS

CONTIGA AS