... seam welding equipment for tank and pipe - TIG, MAG, MIG, plasma, laser avaiable - Linear guide rail design This machine is designed for round seam welding ... need to move for same work piece. Welding torch's vertical moving is powered by ... , alumnium, zinc coating plate by using different welding sources. Such as TIG welder, MIG/MAG welder ... . Cooper earth connection. Circular seam welding equipment