... gas and water transportation Description: SSAW Pipe Mill/Spiral Welded Pipe Machine/SSAW Pipe Making Machine External Diameter: Max. Φ4500mm Steel ... cleaning unit (option), Main drive, Prebend unit, Forming machine, Internal welding unit, External welding unit, Online Ultrasonic ... off unit. Finished equipments: End facing and bevelling machine, Hydrotester and conveyors Options: X-ray tester, marking ...