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ERW Steel Pipe (Electric Resistance Welded Pipes), EFW 1. Size: OD: 10.3-610m...
API 5L Seamless Steel Pipe 1. Hot finish: 60.3-914.4mm / 6.35-101.6mm , 2. ...
PIRAL WELDED STEEL PIPE SSAW(spiral submerged-arc welded pipe) 1. Size: OD: 2...
LSAW steel pipe (Longitudinal Submerged Arc Welded Pipe) UO(UOE)、JCO(JCOE) DSAW(D...