... , easy operation ISO, SGS,CE standard PP film SJF-55, 60, 70, 75 PP Film Blowing MachineCharacteristics1. This machine set adopt ... rotary deviceDouble-station winderMain Technical Variables ModelSJF55SJF60SJF70Diameter of screwφ55φ60φ70Reduced diameter of film(mm)100-500100-600300-800Single-face ...