... ,000 ton welded pipe production lineProduction line introduction:Large-Diameter Longitudinal Submerged-Arc Welded (LSAW) Pipe Production Line apply ... ,X-ray testingJ,diameter expandingK,water pressure testingL,ultrasonic detectionM,X-ray testingN,chamferingO,pipe end magnetic particle ... machine, hydrotester, chamfering machine, etc. Large-Diameter Longitudinal Submerged arc welded pipe production line