9.EN10219 SAWL Steel Pipe

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9.EN10219 SAWL Steel Pipe


Longitudinally Submerged Arc Welding is abbreviate as LSAW. LSAW JCOE Welded Steel Pipe is produced by using a single plate as a raw material, pressing(rolling) the steel plate into a tube blank in a mold or a molding machine, and using double-sided submerged arc welding and expanding the diameter.