Profiles Metal cladding with top hat sections   theoria¬†| elements [caption id="attachment_482" align="alignleft" width="50"] hand drawn[/caption] [caption id="attachment_744" align="alignleft" width="50"] freehand drawing[/caption] [caption id="attachment_739" align="alignleft" width="50"] draft[/caption] [caption id="attachment_2410" align="alignleft" width="50"] assembly[/caption]  ...