... 3 layers co-extrude PE film blowing machineUSAGEThis machine is Three layers PE plastic film blowing machine for blowing three layers PE(HDPE, LDPE, LLDPE ... kind film is lot using for packing liquid food, like soft drink, milk, pure water. Etc., and widely used for making ... headPARAMETER Model3SJ-8003SJ-10003SJ-12003SJ-1500Extruder screws50×2, 55×155×2, 60×160×2, 65×165×2, 70×1Screw ratio (L/D)28:128 ...