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lsaw pipe
LSAW pipe : Longitudinal Submerge-arc Welded pipe .
1.Specification
Spec: GB/T9711.2-1999,GB/T9711.1-1999
SY/T5037,SY/T5040
API 5L
ISO 2604/V1
ASTMA134,A139,A211,A381
JIS G344,G3457
DIN EN10208-2
DNV OS-F101