... PP, HDPE extruding to film, cutting to tape, stretching to plastic flat filament,winding to yarn tube Yarn Stretching Machine is of ... and automatic temperature control, and makes two sides of flat filament uniform heating and multiple stretching by a centrifugal blower ... press roller, to achieve pulling, cooling and forming of flat filament.Filament sucking device uses a high-pressure centrifugal blower ...