Film blowing machine price,pe film blowing machine,blown film machine,high speed film blowing machine,film extruder, Name:Film blowing machine price PerformanceFeaturesFM-600 ... can make vest type bag.Rolling up device with double-drawing in and do-uble cutting ope, its power is ... moment motor, with friction plate,it can keepsuitable tension, drawing in and rolling up in good order, easy to change ...