1.      The use of automatic layer rules pipeline device, to prevent pipeline winding

2.      The use of double ball bearings, more lubrication, friction will be reduced to the minimum

3.      Automatic locking device in the casing can be automatically recovered, can be 180 degrees swing, working range is large, suitable for all kinds of processing workshop

4.      Good stretching design space is less, make the site more clean

5.      The protective device of the enclosure is effective in avoiding the wear of the cable