Vertaling - Engels-Frans - first fix joiner second fix joiner

S'agit-il de deux types de menuisier ? Quels en sont les équivalents en français SVP ?

<Admin's remark>
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note: I'm not 100% sure of the following translation ; it's based on the description of "first fix" and "second fix" found on this page : http://www.buildstore.co.uk/materials/carpentry.html

first fix : travaux de gros oeuvre
second fix : travaux de finition

other possible translation :
"charpentier pour les travaux de gros oeuvre"
"charpentier pour les travaux de finition"

<Admin's remark>
This request is no longer acceptable according to our new submission rules.