Ropa naftowa i gaz ziemny - wydobycie

FLIS & BAD AS

MORGEDAL RØR AS

RØRLEGGERMESTERN AS

TELEMARK VANN VARME OG SANITÆR AS

VÅTROM ENTREPRENØREN AS

HAUGESTØL VVS AS

KJÆRS RØRLEGGERFORRETNING AS

CENTRUM RØR AS

FOSSUM OG SANDUM AS

VENTILASJONSBYGG AS

HYDRO TRANSPORT AS

SKAUGEN BLIKK & VENTILASJON AS

HURUM RØR AS

VVS SENTERET SKIEN AS

OSKAR JOHANSEN AS

LYNG & LØBERG AS EFTF

STOKKE RØRHANDEL AS

VITO TEKNISK ENTREPRENØR AS

EIKER RØRSENTER AS

VVS RØRLEGGER'N TØNSBERG AS

JONNY LARSEN RØRLEGGERBEDRIFT AS

THORSEN & MARCUSSEN AUT RØRLEGGER AS

GRAN VVS AS

SKIEN RØRLEGGERFORRETNING AS

HEISTAD RØRLEGGERFORRETNING AS

NATURGASS GRENLAND AS

RØRMONT AS

RJUKAN VVS & ELEKTRO AS

LIER RØRSENTER AS

RØRLEGGER STRAND & TEKSLE AS