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SSAW Steel Pipe is adopt the Double Side Spiral Submerged Arc Weld technology. Physi...
A252 LSAW piling pipe LSAW (Longitudinal Submerge-arc Welded) UO(UOE),RB(RBE),JC...
SSAW steel pipe is adopt the Double Side Spiral Submerged Arc Weld technology. Physic...