Technically, in ABA type film, the outer and inner layers will be of the same material fed by the same extruder and a middle layer will be of a different material that will be fed by a second extruder. http://www.cnebpmmachine.com/blown-film-machine/aba-blown-film-machine/
Technically, in ABA type film, the outer and inner layers will be of the same material fed by the same extruder and a middle layer will be of a different material that will be fed by a second extruder. http://www.cnebpmmachine.com/blown-film-machine/aba-blown-film-machine/