OK I thought of them but couldn't refind the item. So yes, it' just aluminium road parts, machined (cropped).
Here they are also surfaced compared to mine.
It's what they do too with their magnesium part.
They are moulded, treated, cut (normally not surfaced, it's just for the part finnishing here), and... not retreated...
As the moulded part are not perfect, when they are cut, It remains some areas with material not removed, so you still see green zin chromate (or paint on my parts).
It is also necessary to file the edge a little near the screw holes to remove the piece of material that remains. It's what explain all the scratches and the presence of treatment or paint on the edge of the Racing parts.
