1.For easy roll 2.Winding formation 3.Blown film smoothness double-colour film blowing machine I plant the production of dualmode first prize ... structure,advanced technology,rolling formation,and high production1. the host machine from a drive,twosided article Mitoya Barrel and a die ... ,the air flow evenly.4. Take-up device using the pressure of rolling friction or rolling center,regulating the use of ...