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Spirally submerged arc welded pipe: D: 219-3040mm; T: 5.0-30mmApplication: for oil pi...
(Longitudinal Submerged Arc Welded Pipe) DSAW(Double-side Submerged Arc Welded Pipe)...
Longitudinal Submerged-Arc Welded Steel Pipe Process:LSAW - UO(UOE)、RB(RBE)、JCO(JCOE...
Longitudinal Submerged-Arc Welded Steel Pipe Process:LSAW - UO(UOE)、RB(RBE)、JCO(JCOE,...
ERW: D: 21.7-457.2mm; T: 1.8-14.27mm Spirally submerged arc welded pipe: D: 219-3040...