1.For easy roll 2.Winding formation 3.Blown film smoothness double-colour film blowing machine I plant the production of dualmode ... structure,advanced technology,rolling formation,and high production1. the host machine from a drive,twosided article Mitoya Barrel and a die ... use of torquemotor,rolling for mation,for convenient volume ModelSJ40×2-700SJ45×2-900screw diameterΦ40+40Φ45+45screw ratio L/D28 ...