... as BOPP,PET,nylon,CPP,CPE,aluminum foil&paper Principle picture Application:This machine is suitable for the double-layer or ... tension controller for three section constant tension control. 4.Turret type unwinding station.pre-tension control for non-stop shaft exchange ... .5.Unwinding station equipped with EPC system. 6.Turret type rewinding station.pre-tension control for non-stop shaft exchange ...