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raffinage / pétrochimie ??

 
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benjamin



Joined: 05 May 2005
Posts: 4

PostPosted: 28 May 2005 15:14    Post subject: raffinage / pétrochimie ?? Reply with quote

Voilà je voudrais savoir c quoi la différence entre pétrochimie et raffinage.

merci d'avance de vos réponses.
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