... /testing equipments as per API 5L Standa Spiral Steel Pipe:Outer Diameter 219 ~3000mmWall Tickness 6 ~ 25mmLength 6m ... B,X42~X80;20#,16Mn,Q235B,Q345Manufacturing TechnicSpiral seam double-side submerged arc weldedWeighttheoretical weightPackingin bulk or as per ... low-pressure fluid,oil,gas,drainage transmission,as structure pipe,shipbuiding pipes or for Thermal Power Generation etc.inspectionby ...