... . 3.shoe makin YT-CD820 20T Automatic Oil Hydraulic Swing Arm Leather Production Machinery. 1.Product Information Cutting area1000*500mmM.C ... , few breakdowns, and easy maintenance. B.It is needed to press the button by two hands, to cut off the materials ... , the accuracy is obetained, the speed quickens, and the swinging arm relaxes. D. This machine is composed with the imported spare ...