... advanced inspection/testing equipments as per API 5L Standa Spiral Steel Pipe:Outer Diameter 219 ~3000mmWall Tickness 6 ~ 25mmLength 6m or ... SPEC 5L;GB/T9711.1-1997;BS;EN;DIN;JIS;Steel GradeL245~L485;B,X42~X80;20#,16Mn,Q235B,Q345Manufacturing ... CIFUsagewater,low-pressure fluid,oil,gas,drainage transmission,as structure pipe,shipbuiding pipes or for Thermal Power Generation etc.inspectionby ...