Line cut short after the automatic retraction of 30 minutes why the tube kept
There are two possible drums: 1: is the drum itself ring.
, Compared to the current when the left and right commutation.
There is a possibility, the current than the other large, no current, the rear wheel into a single round guide wheel is similar to the unilateral loose wire, it is necessary to find someone to tune, or buy an automatic wire,
In addition, the water can not be sprayed on the molybdenum wire will appear this situation is short.
