... . imported sets, operate constently and high safety. 3.shoe makin YT-CD820 20T Automatic Oil Hydraulic Swing Arm Leather Production Machinery ... .Advantages / Features: A.Little noise, few breakdowns, and easy maintenance. B.It is needed to press the button by two hands ... such as leather, rubber, canvas, nylon, cardborard, and so on. YT-CD820 20T Oil Hydraulic Swing Arm Leather Production Machinery