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Corrugated pipe welding machine is a weldment Assembly into lap or butt joints and placed the rollers between the electrodes, electrode pressure welding and turning of the wheel, continuous or intermittent pulse transmission, form a continuous seam resistance welding machines. Can also say, seam welding machine is an evolution of spot welding. Seam welding is widely used in manufacturing requires sealing of joints, and is sometimes used in ordinary non-sealed sheet metal of welding, welding metal thickness is usually 0.1~2.5mm.