Arch : Internal object name are in English.

Arch objets Label could be translated.

src/Mod/Arch/ArchFrame.py

@@ -42,6 +42,7 @@ def makeFrame(baseobj,profile,name=translate("Arch","Frame")):
     """makeFrame(baseobj,profile,[name]): creates a frame object from a base sketch (or any other object
     containing wires) and a profile object (an extrudable 2D object containing faces or closed wires)"""
     obj = FreeCAD.ActiveDocument.addObject("Part::FeaturePython",name)
+    obj.Label = translate("Arch",name)
     _Frame(obj)
     if FreeCAD.GuiUp:
         _ViewProviderFrame(obj.ViewObject)