Originally Posted by
sbarner
I have a Torelli Corsa Strada frameset that I believe dates to ~1986. It has the Oria tubing decal. I put a borescope down the tubes and there is evidence that they started with seamed tubing and then through their additional drawing pretty much worked it out. I can see a tine of lighter material running down the inside of the tubes, but there is nothing you could feel with your finger. This is much like True Temper's approach for all their tubing, from what I understand. I also have a Masi Nuova Strada from the same time frame and the two frames look identical, though the Masi has a Columbus decal.
I think Cromor is flat-rolled-seamed-drawn tubing from Columbus.