The slip shaft, also known as the slip type inflatable shaft, is a structure that sets the special section of the inflatable shaft to independently

The inflatable shaft is mainly the shaft whose surface can protrude after high-pressure inflation, and the shaft whose surface part is quickly retracted after deflation.The

The air expansion shaft is a special winding and unwinding shaft. After high-pressure inflation, the surface part can expand, and the surface part quickly retracts