... abopts center-winding and surface-contacting and winding.It is equipped with photoelectric automatic deviation-rectifying device,invariable ... stopping device.Frequency variable and speed adjustable for mainframe.USE The machine is applicable for slitting of BOPP ,PET,PE,PVC, ... foll,paper and isolating material. Application:The machine is applicable for slitting of BOPP,,PET,PE,PVC,aluminum foil,paper ...