They've been polished !! the picture doesn't do it any justice, its like looking in a mirror. The process is quite complicated with the alloy shot blasted first then placed into a large bowl filled with small funny shaped particles that when the machine is switched on rotate round the alloy thus rubbing/polishing the alloy. The first alloy you see in the picture has been under this process nearly 20 hours while rob figures out the best finish possible. I'll try to get some pictures of the machine next time i visit and hopefully collect all 4 finished wheels.
Anyone else interested see Facebook search Wheel Detail