API 5L Large Diameter Welded Spiral Steel Pipe

API 5L Large Diameter Welded Spiral Steel Pipe
　　Standard:API, ASTM, BS, DIN, GB
　　Grade Group:10#-45#, 15NiCuMoNb5
　　Wall thickness:5mm-30mm.
　　Outer Diameter(Round):30 - 250 mm
　　Usage:Oil Gas Sewage Transport
　　Material:Q195/Q215/Q235/Q345
　　Origin:China
　　Certification:ISO
　　Length:1-12m
　　Material: Carbon Steel
　　Surface Treatment: Black
　　Trademark:Shengtian
　　Application:oil and gas industry