Chuck,
You've got me. Powder coat the aluminum? I've never even given that consideration. Very interesting!
Steve, I'm really surprised you gave in so quick
I guess there really wasn't much to go on. In today's world they are as common in industry as the air tool.
ROBOTS...automated eletrical welding robots to be exact. We think they were used to put the roof on then spot weld in place without human intervention.
DV