... connect methods, they must be professionals in the manual, install with the low efficiency, but also difficult to remove, and removal ... , the connecting shaft of the lift under the side panel with spiral teeth, and left and right sets of the inner cavity ... pin, 8, positioning holes, 9, plywood, 10 journal sets, 11, spiral groove, 12, screw, 13, interconnect, 14, interconnect. Specific way of ...