Shifty*EBP*
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If your not an expert, you won't be able to tell. the steel should have the material type printed on it. sometimes i can't tell and i know them well.
DOM weather it be HR or CR will not have a visible seam. thats the hole, drawn over mandrel process.
A simple MTR required with delivery will alleviate any questions. That said MTR are just representative samples of a rolling.