Join Date: May 2000
Location: San Diego, CA
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Re: DOM or Electric welded seam tubing...???
I am not sure, but the wall thickness seems sufficient. The ESM is probably not a straight round tube, but joined together by machine. Like it might have been a stright piece of metal, but was formed into tube.
You might want to post this question on the pirate4x4.com bbs. They have lots of technical info.