... ,inside weldingG,outside weldingH,ultrasonic detectionI,X-ray testingJ,diameter expandingK,water pressure testingL, ... ultrasonic detectionM,X-ray testingN,chamferingO,pipe end magnetic particle inspection.P,antisepic and coating. ... -trimming machine, forming machine, welding equipment, straightening machine, X-ray testing equipment, expanding machine, hydrotester, chamfering machine, ...