Oil & Gas transportation spiral steel pipeline
- SPEC:O.D.: 219~2220mm W.T.: 6~18mm
- MAT:Material: Q235/Q345/L245/L290/L360/L415/L485
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STD:Standard: GB/T9711.1-1997
Note: Petroleum & natural Gas industries----steel pipe for pipelines----Technical delivery conditions----Part 2: Pipes of requirements class B