LSAW,SAWL,DSAW
SY/T5307,SY/T5040,GB/T9711.,GB/T9711.2
ASTMA53,ASTMA252,API SPEC 5L
Q235,Q345,GRB,X42,X43,X56,X52,X60,X70 PSL1,PSL2
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LSAW STEEL PIPE
Longitudinal submerged arc welding steel pipe
LSAW,SAWL,DSAW
SY/T5307,SY/T5040,GB/T9711.,GB/T9711.2
ASTMA53,ASTMA252,API SPEC 5L
Q235,Q345,GRB,X42,X43,X56,X52,X60,X70 PSL1,PSL2
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