Putting the electrode in a clean and dry place, avoiding the shaking and crashing, then stoving it before using

　　When connect the joint, clean the hole with compressed air, then screw it in, don’t destroy the screw thread

　　When connect the electrode, clean the surface of the two electrodes with compressed air when they are at a distance of 20-30mm

　　When connect the electrode with spanner, it should tighten to the designated location, the interval of two electrodes should be less than 0.05mm.

　　To avoid broking the electrode, please avoid insulation material block

　　To avoid broking the electrode, please put the big material block at the bottom and the small material block up