"Structure Features: Welding machine adopts the following structure: Welding machine manufacture convex welding form,There are flat electrode in up and down,More easyer to put the pneumatic clamping device. Welding upper electrodes movement system adopts pneumatic drive,The work schedule, auxiliary schedule both can be adjusted.upper electrodes can also be vertical adjustment, The movable part of the roller guide rail is used to reduce resistance,Also can compensation of guide rail‘s damage to improve the quality of welding. http://www.autoweldingmachine.com/ "