All the seats I have done had the chrome piece as a separate, slip-on, part after the vinyl was stretched and secured. Imagine, if you will, trying to get that strip on that edge perfectly everytime during manufacture with it attached to the vinyl. Any imperfections or variations in the vinyl installation could not be corrected if that was attached prior to finishing the installation. I am not saying it wasn't glued on at the factory, in combination with the clips, but it had to be added after the vinyl. In answer to your question about where to get that piece, I have no idea and am watching this thread for the answer also.