Cable reel series JT is one of the leading products made by DLS, which is a kind of mechanism driven by the springs exploiting energy storage to wind the cables automatically, featuring facility power supply, safety and reliability in operation and correct stress on the cables. There are three different structure of product available for the customers: slip ring built-in type with compact and pretty contour; slip ring exterior installed type in convenience of service; overhanging type which can wind much longer and heavy cables.