oljeraffinering
type: Concept
broader: förädling
related: kemisk industri
in scheme: conceptscheme
preferred label: oil refining @en
preferred label: öljynjalostus @fi

förädling
type: Concept
preferred label: improvement @en
preferred label: jalostus @fi
narrower: oljeraffinering

kemisk industri
type: Concept
preferred label: chemical industry @en
preferred label: kemianteollisuus @fi
related: oljeraffinering