... Series Three layer Co-extrusion Rotary Die Film Blowing Machine,three layer rotary die film blowing machine.film blowing Name:3SJ-G Series Three layer Co-extrusion Rotary Die Film Blowing ... lies,such as length counting device,vertical cutting device,cooling water row pipe,film spreading roller,scrap collecting device Model3SJ-G10003SJ-G12003SJ-G1500 ...