... used in kinds of packing film, basic-material film,wind film production IntroductionTriple- layer co-extrusion salivate film production line adopts aslivate method ... machine,electric control systemBy changing some devices, can also produce the below machinePES,PE heat shrinking film unitPOF heat shrinking film blowing ... *2200Rolling speed (m/min)150120120 Three-layer Co-extrusion Strech Film Machine