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Old 12-06-05, 04:38 PM
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Originally Posted by Kogswell
What Richie-issimo said.

It's really a remarkable process. The weld is made via rollers that pass current through the lapped seam. No filler material is added. And the tubes are then 'cold worked' to restore the grain. As RS said, this is how it's done.
is this how it has always been done?

back in the "old dayd" were the tubes actually welded closed with filler leaving a visible seam?
Seamed tubing must have gotten a bad rep *somehow*, no?

just curious.
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