Sub Mise_à_jour_n°_pièce()
Application.ScreenUpdating = False
Set bdd = Worksheets("Base de données")
L = 3 'Ligne de début
nblig1 = ActiveSheet.Range("C" & Rows.Count).End(xlUp).Row
For i = L To nblig1
ActiveSheet.Cells(i, "D") = WorksheetFunction.VLookup(ActiveSheet.Cells(i, "C").Value, bdd.Range("$d$2:$e$2000"), 2, False)
Next
Application.ScreenUpdating = True
End Sub