1.Automatic machine 2.The machine control of tension by magnetic powder Application:The machine mainly use for BOPP,PET,PE,PVC, ... of tension upon Rolling-up and Rolling-back by magnetic powder.4.The machine can calculate length automatically,Rolling- ... 6.Double air expansion shaft of Rolling-up ,dividing and cutting end face smoothly.7.Aluminum foil,paper slitting ... .2*1.372.5*1.2*1.37 rewinding machine