seamless steel pipe
1.OD:140-273mm
2.Thickness:6-26mm
3.Material:Q345B/20#/10#/45#/J55/K55/API 5L.B/X42/X52/X60 X70,etc.
4.Standard:GB/T8162-1999,GB/T8163-1999,GB3087-1999,GB5310-1999,API5L,API 5CT
5.Applying fields:offshore oil exploitation,vacuum distillation,three gorges,power station,west-east,chemical plant,etc.