It is also safe to repair the workpiece surface with no margin. High repair accuracy. Surfacing thickness from a few microns to a few millimeters, just grinding, polishing. High welding strength. Due to the full penetration of the material on the surface of the workpiece, there is a strong bond. Ring precision control. Line connection is correct and reasonable, grounding must meet the requirements; magnetic workpiece jaws on its contact surface must not have attached metal particles and spatter. After the completion of the welding machine wiring, before starting the operation of the device must check each installed connector To confirm its connection is good.